SCIENTIFIC ABSTRACT POLUEKTOV, N.S. - POLUEKTOV, N.S.

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• Collection: Scientific Abstracts
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• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

"The Use of Radioactive
Zircomium and Fafnium," a pa
Switzerland, 1955
the Analytical C~;erd~tr-
y of
for Peace Go-pSerence., C;epe,,a,

211
PY~'
on= 6 Abbott. stow by.
-Atetyw6jwd Nomed la'
s DOW,
at", t lottill
7id :'Th' ft"Of thblami Miew tlhr6ush~
tee,
the 1A lime, 670 a li
w wlthioct~v~-Cohtir._
-lot
'Q: &- Btu
-'ff---4T4f'K is tralIzedly adding a.
er this
d. --~4 (NAM In
03 d0d. oru with
-i W
IR
71;;'_11.-7-17,

AUTHORS: Pollektov, N,, S., N-k,-no-va, M. P., 75-6--6/23
~Zer, G. S.
.TITLE: Flame Spectrophotometric, Determination of Strontium in Minerals
(Opredeleniy~~ strontaiya v rudakh po netodu spektro'Lotome"ri-I
plamenj ).
PERIODICAL: ZhurneL Analiticheskoy Bimili, 1-957, Vol- 12., Nr 6, pp. 699-70-.-J'
(USSR).
ABSTRACT: By applying a flame spectrophotometer with a monochromator of the
type YY,,2 with a photomultiplier and a sensitive galvanometer, st.-on=
tium is determined in two ways;
1 - At a hiLher content of strontium.
2 - At a strontii-Lm-content, from Osl to 0,001 0/0.
The lane 46c,,7 ra,~L with arL aix-acetylene-flame -was used as line of
determination. The mineral is first converted into a soluti3n by
the disinte,,;ration of alkali in order to remove the sulpbates. 1-13
PO,4has an- :;.ntensely extinguishing effect. The disturbing aluminum
and other e'lements are removed by precipitation with ammonium hyd--o=
xide. The disturbing effect of calcium is eliminated by adding am=
Cawd 1/2 monium. chloride to the photometric solution. In the case,of s-mall

Flame Spec trophotometric D,.~term-Lriattlion of Strontium in Minerals. 75-6-6/23
quantities o!~ strontium., calcium oxide in a quantity of 30
is added to 41-he standard specimen to be analyzed.
The standard sol,,itions were produced with 1, 2, 5, lo, 2o, 51o, and
1,00 t ml SrO.
There are 4 figures, " '~Iables, and 13 references, 3 of ',Ilich are
Slavic.
SUbMITTED: April 2, 1957.
AVAILABLE: Library of Congress.
1. Minerals-Stronitur, determination 2. name spectrophalometric-
Applicat-ions
Card 2/2

PC'j_UY1~_KTDV, N-5,
AUTM PaMn4%1.8.*WNOMM% L.T.,SURICHAN T.A. 32-6-6/54
TXTLN Ittration of Ziroonius and Kafnium.
NwAaksametrio)-sekoys titrovaniye teirkonlya i gafniya-ftesian).
PZRIODICAL f&Vv1sJuq& Uborssorlyaq 1957# Vol 2301r 60 pp 66o-661 (U.S.S.R.)
Reo*-Lved 7/1957 Reviewed 8/1957
ABSTRACT In th* present paper it Issaid, that oomplexonetrical titration of
sirconium abd hafnIus Is useWly used in the case of PR=l#5-2,5
with the application (&@*indicator) of *riochromsianing chromato-
surol. or oulphophonolazoahronotrople acid, Inverse titration is car-
ried out by the applioation of trivalent iron in the presence of a&-
llo.wlle "I& or'benshydroxem &old with pH -sphGre 3-7 or by bismuth
salts In the pr*senoe-of tiogarn with pR a 2#OoThe amporometric de-
termination of the end of titration to practised* Titration In a
higUy hydrochloric sphere makes this method more specifics In this
came iron(II)s triust titant tin(IV) solybdeaung niobiump aluminum,
caloi=6 blumthe coppervaicklop germantung mercury etc* no longer
distur'b titratica. Iron(III) disturbs and must therefor's-be pr*vious.
1y regeneratedp4l.g. lay means of hytroxilanine boilinge-Vanadlum af-
so has a disturblng effects Also tantalius compounds disturb titration
because tantalla &old 'precipitation absorbs the zircontun.-compounds
with the Indicators The east eff*614 in produced by tungsten. Strong
oxidizing means and regenerators destroy reactively, the presence of
Card 1/2 nitrate Ions in the solution is therefore impossible. Among other

-Ift L 7 0
"Reactions of Rare Earth Salts With Rhodizonic Acid."
a.re Earth Elements (Extraction, Analysis, Use), Riblished by the institute ol*
G-eocheLriistry and Analytical Che:dstry 11meni V. I. Vernadskiy, 1958, Moscow.
fUkrairtian State Institute of' Hare Metals),
Q=ws"UM of an ftra zw~" w
21"k MOMMU AS *I* I-WKUM at 8MdMKfftV &a &MUU4" one.
SSW two T. I.-Tan"My of am &=6m at ad"=* am as ""sue
" dwft~ Mae" Mr ft"r-MM nm O"a - a. =am" at 910MOMAM
=
6 SOM w", Ift . W~ftg-pw. -bPRAM,
ew%rw ver2ustlaw or ~
SUMM =sum we UUMVIA6
Q--U. nn ~Q aqw1u. simUsetim wus"Om an pwpLm"ft se *am"
ad -lug ftrqw. *&%Lww. asumbf-T. auk". nw"M"M. **Mo.
%Map. Iblow"M unk" fta 0:00elaw, B. A, Qr1qSvM ft"t *bLuad the
MMWIV Of MM O&M OUNDU In %be PM $a%. MpamUl mV WoU.
MMUMU? MGMEO Of VAM 01~S%MC4 doUnds" thelz MVMLM pffprMo.

AUTFORS: Poluektov, N. S., Nikcn07a, P... 1V'-Jtkun, R. ~i. -5,1-7,126
- A-
TITLE: The Determination of Sodium and Potassium in Minerals 'filith
the Aid of Flame Spectrophotometry
(Opredeleniy~B natriya i kaliya v mineralakh po metodu
spektrofotom,3trii plameni)
PERIODICAL: Zhurnal Analiticheskoy Khimii, 1958, Vol 13, PP
(US-SRN -
ABSTRACT.* In an earliur paper the authors worked out irstructions for
the flame-photometric determination of lithium, rubidium and
4-
cesium (reft. 1,2). In the flame-photometric determination of
elements in solutions the mutual influence of the elements and
the composition of the solutions have to be taken into account,
as the intensity of the radiation of the element to be investi=
gated is thereby influenced. In the present paper the authors
investigated the published data on the mutual infiXence of the
elements (ralfs.. lo-16) in order to be able to work out a suitable
course of the analysis. For the determination of sodium and po=
tassium they used a flame spectrophotometer which was built upon
Card 1/5 a universal. monochrometer of the typeyVI -2 this device is of

The Determination of Sodiw,-i and Potassium in Yinerals 7 "-1- 11/26
With the Aid of Flame Spec~lropbotometry
high sensitivity and specificity for the determination of
sodium and p!)tassium. For recording radiation in sodium. de=
termination they used a photomultiplier of the type (P .3 Y-19,
in potassium determination of the type(P--'3Y-22. The photo=
electric current was measured by means of a refleching galva=
nometer of the type ~ft- The atomizer and the burner for the
work with at, illumina ing gas flame are illustrated and descri=
bed.
In order to characterize the usefulness of the apparatus for the
determination of sodium and potassium in the presence of other
elements the authors determined the frfactor of specificity"
(ref. 1". This means the number indicating haw many times higher
the concent:7ation of a foreign element must be in order to cause
the same deflection of the galvanometer as the element to be de=
termined at a concentration lo ffper ml. These factors of specio
ficity are relative to the wave lengths of the radiation of the
metal to be investigated (in the case of sodium 589-59o m(IA-, in
the case of' potasslum 76o-77o m 4A- ) . Results are given. Correspon=
ding to the content of the samples of sodium and potassium (up to
Card 2/5 100/0) the conditions for a determination of sodium at concentra~

The Determination of 3odium -~nd Potassi,,im In -'inerals 7-5-1-7/26
-6ith the Aid of Flame 'pectrophotometry
tioii5 of' up to loo r -,.Ia per Pil for iilup..in,,-tin;,.._ra,, flames
and acetylenc flame� viere examined. j, lirtar ded:-lridencc of tile
radiation iniensity on the concentration exists only u,,,) to lo.~
!!a per nil. Ti,erefore the samplesUin the ranges bet-v,,r--en lo and
loo6l!a/ml are compared witli 2 standard solutions the concentra=
tions of whi(,h are similar to those of thu sample. Tile influence
of accoinpany~wnp, clements upon the intensity of thu radiation of
sodium and 0:)t3SSiUn! in illuminaLing-gar, flames and acetylene
flames was invcstigated. 2ased on these investigations conditions
for the deturniinations of these inetals viith a LiL~hcr accliracy
were found.
i;y the deternanation of potassiwn it -,-,as fourd that tI.-e decree
of tile ioni7ation of potassium is decisive for the int-ensity of
radiation. -1he concentration rT the ioniz~L;d potassium atcifis is
obtained from the equation:
Card 315 where VO, rK'.l and e-I axz; tiie concentrations of i~iiu potassium

The Determination of Sodium and -Potassiu-m in Linerals 75-1-7/26
'Rith the Aid of Flame Spectrop?~oto,-.rietry
rAtOXO, potassium ions and the f-lectrons in ti~c flarrie. ,!ased
on this vquat--',on MIL: follcyal-n1f, rules governinr- the i%uttial in=
U
tensification of' the radiation int.erisity in alkali me-Lals are
obtained: *.'.eta-.Ls casy to ionize (rubidiwi, cusiunt) CaL13C a higher
effect than netals worse to ionize (lithium), as they nore inten=
sively disturb the equilibrium by a high increasc in ube concen=
tration of the electrons. 2. The intensifying action of other
metals is hi.,,,hest at low concentrations of potassitni, because a
comparativel- large portion of potassium atorks is ioni%ed then.
Y
3. The intensification of the radiation of potassiurr on addition
of another metal in increasinE concentrations tends toward a limit
which is Liven by the complete ionization of potassium. and which
is the faster attained the I.o,;-.er the ionization potential of the
added metal,. 4. The intensification effect of radiation is hi=
gher in fla.,~ies in which a larger part of the atoms is ionized.
This is the case in. flames .~rith very high temperatures. On the
basis of tbase investigations instructions for the determination
of godium and potassium in minerals were worked out vchich are
accurately given here. The method permits the dettxr.,ination of
contents oi' every individual allkali metal from C,)1-11`~,00/o with
Card b/5 an accurac-,r of -1 3010.

The Determination of Sodium and Potassium in Itinerals 75-1-7/26
With the Aid of yjame S pectrophotome try
There are 5 figures, 6 tables, and 16 references, 2 of which
are Slavic.
ASSOCIATION: Institute of General and Inorganic Chemistry, tcademy of
Sciences of the Ukrainian SSR, Laboratories in Odessa
(Russian Text not Given)
SUBVIWED: December 17, 195(.
AVAILABLE: Library of Congress.
1. Sodiii.-i - betermination 2. Potasslizii - D'etermiretion
3. r1amn spectrophotomet~,rs - Applic.9tions
Card 515

SOV/75-13-4-3/29
AUTHORS: Poluektov, N. S., Kononenko, L. I., Lauer, R. S.
TITLE: Photometric Determination of Tantalum, Boron, Indium, and
Rhenium in ~!,xtracts (Ekstraktsioniio-fotometrichc-skoye
opredeleniy.a tantala, bora, indiya i reniya)
PERIODICALt Zhurnal analiticheskoy khimii,1958,Vol.13,Nr 4,PP-396-401(USSR)
ABSTRACT: Recently suggested methods for the determination of a series
of metals are based on the photometric determination of color-
ed extracts A n Me.Xm (A- organic dye; Me - metal to be deter-
mined; X - halogen). These extracts contain the metal to be
determined as salt of a complex halogen acid with a basic dye.
The same dy-e is a suitable reagent for a number of metals, thr-
necessary f--;electivity is obtained by selection of' the halogen,
the acidit,.- of the solution and other reaction conditions.
When elabo:.,-ating new extraction-photometric methods, the ex-
isting parallels between the extractability of simple or com-
plex halog,.,n acids according to the oxonium-mechanism (Ref 8)
and that of salts of organic bases hfive to be. con--.idtred. Thus
the complex chlorides of metals which can be extracted as salts
Card 1If of organic bases are extracted by diethyl ether or other oxy-

SOV/75-13-4-3/29
Photometric Determination )f Tantalum, Boron, Indium, and Rhenium in Lxtracts
gen containing solvents, whereas simple or complex acids of
elements ,,,hich can be extracted according to the oxonium-
mechanism are also extracted by solvents that do not contain
an organic3lly bound oxygen (arsonium-compounds). For elements,
the acids c;f which can be extracted according to the oxonium-
mechanism c;r as salts of arsonium-compounds, conditions can be
found under which the same acids can also be extracted as salts
of organic dye bases. Acids which are difficult to extract ac-
cording to the oxonium-mechanism can, however, not be extracted
by dyes. Thus As(III), Sb(III), Ge(IV), Te(IV), and other sub-
stances which can be extracted by diethyl ether from a hydro.-
chloric soLution (Ref 14) cannot be extracted by benzene as
salts of r;'aodamine ander similar conditions. This is due tc the
fact that the concentration of the rhodamine base is much lower
than the concentration which can be attained with the solvent
in the extraction according to the oxonium-mechanism. In order
to de,iiontitrrite their line of thoaght, the authors elaborated
new extraction-photometric methods for determining tantalum,
boron, indium, and rhenium4 Tantalum and boron are extracted
by benzene in the presence of hydrofluoric acid as salts of
Card 21A the methy-.,. violet; the determination of the colored solutions
3

SOV/75-13-4-3/29
Photometric Determination Df Tantalum, Boron, Indium, and Rhenium in Extracts
after the extraction was carried out on photoelectric colori-
meters of the type 19 X-M. Indium can be extracted in the pre-
sence of hydrobromic acid as salt of the rhodamine C by benzene;
and rhenium can be extracted by ethyl acetate from a neutral so-
lution as a l,er-rhenate of methyl violet. The determination of
the colored f..olutions of both of these elements was carried out
on "Pulfricb"-photometers. The procedure used in these four de-
terminations is described in detail and-a list of interfering
foreign ions. and errors of determinatibn is given, There are 3
figures, 6 tables, and 21 references, 5 of which are Soviet.
ASSOCIATION: Institut obshchey i neorganicheskoy khimii AN USSR, laboratorii
v g. Odesse (Institute of General and Inorganic ChemistryAS
Ukr - 58R, Odessa Laboratories)
SUBMITTED: March 4, 1957
Card 3/4
-3

v,POLIMETOV, V.S.; KISIMB7A, R.K. [diceased).
Color reactions nf gallium and Indlum salts with organic reagents
[with summr7 in English). Zhur. anal. kbim. 13 nc)-55.55-561
S-0 158, (MIRA 11:10)
1. Institut obshc:he7 i noorgenicheskoy khImil AN USSR, laboratorit
v Odense.
Wallium) (Indium)

5(2)
AUTHORS: Poluektov. F. S., Nikonova, If. F.
TITLE: On the Mutual Influence of Elements
Intensity in a Flame (0 vzaimnom vliyanii
intensivnost' izlucheniya v plameni)
Sprayers Technique (Soobshcheniye 1.
dvukh raspyliteley)
S-0-7/75-1 3-6-2/2,
on the Radiation
eleme-,Itov na
Communication I. Two
Primeneniye tekhniki
PERIODICAL3 Zhurnal aaaliticheskoy khimii, 1958, Vol 13, Nr 6, pp 635-642
(USSR)
ABSTRACTz The mutual influence of alkali metals on the radiation in
a flame has been found by several authors already (Refs 2-12)
and may bs explained by ionization processes of the metal
atoms in the flame. The equilibrium between atoms, -Jons and
electrons is therein established: P metal +.P e- K
Pmetal
(Refs 13,14), where P is the corresponding partial pressure.
On the introduction of another ionizing metal into the flame
the partial pressure of the electrons increases which involver.
Card-1/4 a decreaE:e of Pmetal + and an increase of P metal' By this

on the Mutual influence of Elements Upon the SDV/75-~; 7-6-21 /21
Radiation Intensity in a Flame. Communication I.
Two Sprayers Technique
effect all. known rules can be explained which are related to
a mutual -".ntensification of the radiation of alkali metals
in the flume. The cause of a decrease of the radiation
intensity of an alkali metal in the presence of another one
lies in the variation of the dissociation degree of metal
salts on 1;he addition of large amounts of other metal salts
(Ref 4). The dissociation of a metal halide must obey the
law of mass action: P metal * PX P is azain the ccT-
.Vmeta!X
respondinig partial pressure. By addition of fu:cther halogen
atoms PX is increased and P metal accordingly decreased which
causes a decrease of the radiation in-censity of the element
in the flame. This effect is denoted as "anion effect". It
does not only occur with alkali metal salts, but also with
acids and their ammonium salts (Ref 15). This effect depends
on the nature of the acid and on its concentration and attains
Card 2/4 maximu.m intensity in phosphoric acid (Ref 17). A further

On the Mutual Influence of Elements Upon them 30-1 `7 z - ' 7i -
Radiation Intensity in a 4Flame. Communication I.
Two Sprayers Technique
Card 3/4
effect is the formation of compounds between metal oxides.
It effects the elimination of the radiation of alkaline-earth
metals in the presence of a sufficient quantity of aluminum
salts (Ref 17). This effect oan be used for the detorinination
of traces :)f alkali metals in the presence of alkaline-earth
metals (Re,"s 21,22). This effect is due to the formation of
stable difficultly volatile compounds of low thermal con-
ductivity il'e.g.CaAl204 ), which cannot evaporate when passing
through tha flame (Refs 22-24). The authors of the present
paper inve-.3tigated the mechanisms of the influence of foreign
substances upon the intensity of the radiation of alkali
metals and alkaline-earth metals in the flame. On the basis
of the effocts described the mechanism of this interaction is
different -;.n different cases. The experimental studies were
performed by means of a device in which the two solutions were
sprayed in separated sprayers and then conducted to one com-
mon torch. This device is illustrated and described in the
paper. It permitted the experimental confirmation -

On the Mutual Influence of Elements Upon the SOV/75-13-6-2/21
Radiation Intensity in a Plame. Communication 1.
Two Sprayers Technique
of the mechanisms - assumed in the paper - for the action on
the radiat'.on intensity of elements in the flame exerted by
foreign su~,)stances. There are 2 figures, 5 tables, and 24
references, 6 of which are Soviet.
ASSOCIATION: Institut o-oshchey i neorganicheskoy khimii AN USSR,
laboratoril v Odesse (Institute of General and Inorganic
Chemistry, AS UkrSSRI Laboratories at Odessa)
SUBMITTED: June 3, 1957
Card 4/4

POMAK. 0~1 N.S.; NIKONOVAI Mope
-
Dot-ei-mining small aw=ta of alkali metals in. cesium salts bjv means
of flame photometry. Zar. lab. 24 no.5:528-531,'58. (KIU 11:6)
1, Institut obshehe7 i neorganicheskoy khImii Akademli nauk USSR.
(Gesiwt--~is) (AlIcali metals--Analysis)
(PhotOm8tz7)

k N.
Woo
a 4s; oz
all
Vill-
Zj
JAR
CID
10
kin
all I
S 3
0 .4 a 41
air
PAO

24(4) PUSE I BOOK EXPLOITATION SOV/2795
Poluektov, N. S. elWYEVICH
Metody analiza po foteometrli plameni (Nethods of Analysis
By Flame Photometr-,F) Moscow, Gookhimizdat, 1959. 230
p. Errata slip iniserted. 4,000 copies printed.
Ed.s N. N. Farafonov; Tech. Ed.: Ye. G. Shpak.
PURPOSE: 'This book Is Intended for workers in chemical analysis
laboratories, industrial firms, and scientific research Insti-
tutions.
COVERAGE: This book describes methods of analysis by flame
photometry. It preaonta the theo.retical principles of the
various methods, describes the design and arrangement of the
necessary equipment, and gives in detail the rules of pro-
Icedure. It Is stated that this method is suitable for rapid
qualitative detection and quantitative determination of
Card 1/ja

5W
AUT ~, OR S: Poluektov, N. S. , Nikonova, 14. P. SOV/32-25-3-2/62
TITLE. On the He3ation Between Radiation I nten,ity and the
Concentralion of Alkali Metals in the Flame-photomeri~.,
Method (0 zavisimosti mezhdi~ intensivnostlyu iziucheni5ra
i kontsen-;ratsiyey shchelochnykh metallov pri
-r,lamenr,.o-:--'otomeIL;richeakom metode)
PERIODICAL: Zavodskaya Laboratoriya, 1,5'519; Vo-1 25~ Nr 3~ pp 263-266 (USSR)
.-!.B:3TRp.CT. A thor---,~--oh investligation. into the shane of the
concenti---tion curves (cc) in flame-photometric analyses of
alka----:. -,i&s carried out because the inclination cf -Lhe
,AA, lin-- is in contrast mith the theory. sha-ce of
Rb 780 m
.
JUMJnatJng fla=ez '"00~ C)
the (cc) rias determ-~ne~i n 4 '1
--- . .1 -
and acet;rienE~-- P-1, -r -Clame s (20 ONO C spec tr - pho t. ome tc--
a U111-2 m,)nochromator and FEU-19 and FEU-22 photomultf.P.11ers)
which has already been described (Refs 10-10') vas used- The
vork-4nc, -netho-d is described. The measurement2 were repeated for
-~s and the fulictional diagrams ig T of 1g 0 vare
severe.' 'ime
drawn ficum "he mean values. In the illiunipating gas flamed

Card 1/3 (Fig 2) an .-*rxc-,--3&se in the inclination of the clzrve may be

On the Relation
Concentration o
Intensity and the 30,'132-25-3-2162
the Flame-photometric Method
observed at small concentrations of K, Rb, and Cs (Table
In comparis(,,,n to the illuminating gas flame the curves for
K, Rb, and Cs which were obtained in the acetylene flame have
another shaj~e (Fig 3). For a more precise determination of the
changes in the inclination of the (cc) the angular coefficient
for each section of the curve in the range of from
10-2 to 5'1C_ 5 mol was calculated (Table 1). It was found that
at concentrations of '10 10 ' mol the angle of in~;'12Ye~ti~.,
increases ani tg rX .4 for K and Rlb and f or C7- - Tj~~e
unproportionally strong decrease in the line intensity at a
reduction of the concentration is explained in reference 11
by the influance exercised by ionization. According to this
assumption it is found that in the case of strong I.onization
the line int-3nsity is proportional to the square of the
concentratio,as of the atoms which are put into the flame
(tgtx = 2), while in the case of e. weak ionization the radia
intensity is directly proportional to the concentration
(tgat = 1). .-n the intermediate range tga~ changes from 2 tD
The difference between the (cc) in the acetylene and

On the Relation
Concentration o
Intensity and the BOV32-25--3-2/62
the Flame-photometric Methcd
illuminating gas flame is explained by a comparisnn o
ionization oonstants (Table 2) calculated according t
formula givan in reference 8 and the partial pressure
metal atoms., There are 7 figures.. 2 tables, and 12 re
5 of which are Soviet.
Laboratoriye. Instituta obshchey i neorganichaskoy kh,-mil
AN USSR (Lal.oratory of the Institute of General aLd In-organic
Chemistry of the AS UkrSSR)

5(2) SOV/32-25-4-2/71
AUTHORS: Lauer, R. ,),; poluektov, 11. S.
TITLE: Microvolum-atric Chromatographic blethod for the Determination of
Individual Elements of Rare Earths in Their ISixtures
(Mikroobl'yamnyy khromatograficheakiy metod opredeleniya
individuallnykh redkozemelInykh elementov v ikh smesi)
PERIODICAL: Zavodskaya Laboratoriya, 1959, Vol 25, Nr 4, PP 391-396 (USSR)
ABSTRACT: Subsequen-; to prelimindry investigations a method was worked out
which is based on a paper chromatography of a rhodanide-contain-
ing acetone-ether mixture. The chromatogram (Figure) shows that
the elements are arranged by ascending atomic indices, the Rf-
value being slightly dependent on the working time, temperature,
and other factors (Table 1 shows the Rf-valueB Of Some rare
earths). The position of individual elements is fixed by wetting
with a uxotropin-containing alcoholic alizarin oolution. The
volumetric microdetermination of individual elements is done
complexoretrically with the indicator arsenazo (Refs 5,30). BY
the described method, a determination of lanthanum 'Table 2), of
some preparations with 2-3 elements of rare earths ~Table 4),
Card 1/2 and of a.-..-tificial mixtures of oxides of the elements of rare

SOV/32-25-4-2/71
Microvolumetric Chromatog~~aphic Method for the Determination O-P Tnd-vJ*dua'
Elements of Rare Earths i3i Their Yixtures
earths (Ta*Dle 5) was carried out, and the sensitivity of the
method was e3tablished with '11-2% R20 3in the mixture, A list of
the necessary reagents and devicer, is given as well as a descrip-
tion of the courBe of analysis, and a table of the conversior
factors from La 203 to oxides of other rare earths (Table 3)-
There are I figure, 5 tables, and 31 references, 12 of which
are Soviet..
ASSOCIATION: Laboratorlya Instituta obshchey i neorganicheskoy khimii
Akademi-i nauk USSR (Laboratory of the Institute of General. and
Inorganic Chemistry of the Academy of SciencesUkrSSR)
Card 2/2

5(2)
AUTHORS: Poluektov, N. S., Kononenko, L. 1. SOV/32-25-5-7/56
TITLE: Determination of Rhenium in Molybdenites With the
Colorinetric Method (Opredeleniye reniya v molibdenitakh
kolorizietricheakim metodom)
PERIODICALt Zavodsl-:aya Laboratoriya, 1959, Vol 25, Nr 5, PP 548-550 (USSR)
ABSTRACT& The prosent paper gives a description of a colorimetric
rheniun determination based on the use of a catalytic
reaction with tin chloride (I) and sodium tellurate (11)
(Refs 9, 10). (1) does not effect the reduction of (II) in
acid solutions.-In the presence of perrhen~xtesv however,
(1) hait a catalytic effect upon the reaction Na 2TeO4 +
3 SnCl :) + 8 HC1 ----* T a + 3 SnC14+ 2 NaC1 + 4 H 20,
in whii.,h connection elemental tellurium is formed. The
amount of Te formed as well as the color intensity of the
solution increases with time and further depend on the
concentration of the reagents, on temperature, etc. Under
observance of the conditions prescribed, the method under
Card 1/3 review allows up to 0.001-t Re to be determined colorimetrically

Determination of Rhenium in Molybdenites With the BOY/32-25-5-7/56
Colorimetric Method
after 20 hours (in the case of 0.01jrRe, a waiting time of
from 1 to 1.5 hours will be sufficient). Molybdenum, which
gives the same reaction, may be "masked" by tartaric acid,
or it may be extracted as oxyquinolate with chloroform. The
separation from the principal amount of No takes place by
roasting with a CaO + Ca(NO 3)2 mixture, in which connection
No remains i-insolved as Ca-molybdate in water dissolution,
while He remains in solution up to 92-90a, as was found by
the aid of 1;1.e 186 . Sodium tellurate, which is required for
the analysin of molybdenites is prepared from elemental
Te accordinj:: to a method described. The course of analysis
is given an& shows inter al that colorimetric measurement
takes place with a photocolorimeter FEK-M, and the Re
content is Eetermined with an equation on the basis of the
extinction of the solution. Analytical results obtained
with molybdenites and molybdenum concentrations (Table 1)
as well as from ores with Rhenium content (Table 2) are given.
Card 2AP There are 2 tables and 10 references, 6 of which are Soviet.
I JA-d-, --/' " J--7 '.'~ XS 111be- 5 1,"', .

5 (2.)
AUTHORS: Lauer, R. S., Poluektov, N. S. SOV/32-25-8-3/44
TITLE.: Determinationof.Tantalam Impurities in Zirconium, Hafnium, and
Niobium
PERIODICAL: Zavodskaya laboratoriya, 1959, Vol 25, Nr 8, PP 903 - 905
ABSTRACT; The'authors and L. .I.. Kononenko (Aef 1) applied a method for
the determination of tantalum,(I);in the metals zirconipm (II),
hafnium (III), and,.niobium (IV) which is based on the fact that
(I) can be.determined photomet.rically-quantitatively by the
c9loring of the benzene extract of fluortantalate of methyl
violet (M). This determination is 'not disturbed by (II), (III)p
and small quantities of (1). It was established that the most
complete extraction of (I) is achieved at a Oe3 n concentration
of hydrofluoric acid with benzene, with the addition of 0.04~
of (M) and at pH 2-3- (11) is not extracted and the small .
quantitiev of simultaneously extracted (IV) can bp re-extracted
with 00 ri. hydrofluoric acid which contains (1). At the re-
extractior~ a small quantity of (I) is also extracted (Table 1)
and this fact has to be taken into consideration when plotting
Card 1/2 the calculation diagram. The article.eont'ain's two processes of

Determination of Tantalum Impurities-in Zirconium, BOV/32-25-8-3/44
Eafnium,.And Niobium
analysis -- for (II)-and-(III)' and for (IV). Three samples of
metallic (JI), one of (III) and:.two of.(IV) were analyzed ac-
cording to the described-method (Table 2); at these processes
(I) was.aAdeUto,the solved samples (Table 3je The sensitivity
of the (I)-diteriinafion.'is.stated to be 2-5110-4% for (II)
and-(III),, and 5#10-2% for (IV).'There are 3 tables and 1
Soviet-reference.
ASS16CUTION: Laborator.1ya Instituta obahchey.i*neorganicheakoy khimii
Akadexii :aauk USBR (Laboratory of,tee'Inatitute of General
and.Inorg.iLnic Chemistry of the Academy of Sciences, UkrSSR)
Card 2/2

5(2) SOV/32-25-9-8/53
AUTHORS: Kononenko, L. I., Poluektov, N. S.
TITLE. Colorimetric Determination of Zirconium in Ores Containing
Phosphates
PERIODICALs Zavodskaya laboratoriya, 1959, Vol 25, Nr 9, PP 1050-1053
(USSR)
ABSTRACTs A colorimetric method, based upon a previously described method
(Ref 1), for the determination of zirconium, was elaborated,
intended, 'however, for ores.containing phosphates. Zirconium
is separated as the phosphate, the phosphate dissolved in
oxalic acil, and zirconium is precipitated with NaOH as the
hydroxide. The latter is dissolved in hydrochloric acid and a
colorimetric determination with arsen azo, or alizarin red is
made. The completeness of phosphate precipitation and Zr was
investigated by means of Hf 181 (as it reacts like Zr), and it
was found that Zr as the phosphate precipitates up to 95-98%
only with an acidity of the medium above 3.5n HC1 (Table 1).
The degree of separation of Zr from tantalum. and niobium was
Card 1/2 investigated by means of Ta 182 and Nb95 and it war. found that.

SOV/32-25-9-8/53
Colorimetric DeterminatioL of Zirconium in Ores Containing Phosphates
the separation from Nb is complete, whereas a part of Ta dis-
solves with Zr, without, however, disturbing the Zr determina-
tion since Trilon B is used (Table 2). For the purpose of
colorimetric determination a green and orange-colored filter'
should be used in the colorimeter of the type FEK-M, which does
not have a yellow filter. An orange-glass 03-12 may be used.
Zr determinations of ore samples were carried out according to
the course of analysis mentioned (Table 3), with certain Zr
quantities being added to the samples (Table 4). It was pos-
sible to determine of from a few hundredths to 2 per cent ZrO 2
in the samples. There are 4 tables and 4 references, 2 of
which are Soviet.
ASSOCIATION: Institut obshchey i neorganicheskoy khimii Akademii nauk USSR
(Institute of General and Inorganic Chemistry of the Academy
of Sciences, UkrSSR)
Card 2/2

Au
n .1 %1 Pig (if 0. r lip
.0 iii
I rr
fly
Ph
WE
P,
lp
r
W.

I-OI,UEK'L-"C)V, N. 1131., Doe Chem Sci -- (diss) "Research into the iielu, of"
the theory o'L flame-photmLetry -nethod and its application in the anal-
ysis of rare elements." lWo-scolt., 19-1-C. 34 pp; (Academy olf, -S-SR,
Inst of Geochemistry and Analytical Chemistry im V. !. Vernads-kiy');
150 copies; price not given; list of author's work at end of text
entri.es'; (n, 22-60, 1511

o L 0
PHASE I BOOK :-:~'LOITATION SGV/5747
Vaeno~njznoye soveshchanl-ye po redkim shchelochnym clementam. 13t,
NOV03iblrsk, 1958.
Redlciye ohchelochnyye alementy; sbornik dokladov soveshchaniya po
Vr,imli, tekhnologii A analitichookoy khImli redkikh nncholochnykh
elemr-ntov, 27-31 yanvarya 1958 9. (Rare Alkali Elemento; Col-
--ectien of ReDorts of the Conference on the Chcmiatr-j, Technology)
and Analytical Chcul3try of Rare Alkali Elements, Hold 21"-31
January, 1958) Novo3Lbirak, Izd-vo Sibirskogo otd. PIZ SSSR, 196o.
99 p. 1000 ccpies priated.
-Opi~n'.lorlng Agency: Akad-Amlya nauk SSSR. Sibirskoye otdcloniye.
~.~iir,Uko-r~.etallurgiche;ilciy Inatitut.
Reizp. Ed.: T. V. Zabolo'.;skiy, Candidate of Technical Sciences;
bers of Editorial Board: A. S. Mikulinskiy, Professor, Doctor
of Technical Sciences, A. T. Logvinenko, Candidate of Technical
Sciences, F. F. Barkova, Candidate of Chemical Sciences; Ed.:
V. M. Bushuyeva; Tech, Ed.; A. F. Mazurova.
Ca--Z-VI~-

17
Pare Alkali Elc-ent3; Collection (cont.) SOV/5747
FLr71F,:r3E . T-hi-A book is'':ntended for chemical engineers and tech-
nicIan5 working in me,;allurgical and mining operations and
related c-nter-pri!~e!).
COIV=HA~S: Thct collection contain,3 reports which deal with the
-%Ayn-tcal and analytical chemistry of rare alkali element:3 and
-rheir cc-,pourida and taoir reactions i-,ith mineral orea and salts.
?Icthoda of extraction and T,.cdcrn analytical technIquea and
equipment are aloo dlacus:wd. No peraonalitlea are mentioned.
References accompany Individual articles.
TAB12 OV COMMITS:
Urazov, 0. G. (Doeensed;, V. V. Plyushchev~ Yu. P. Slm~...ovand 1, V.
Shakhno [MonkcYrtkiy institut tonkoy khimicheskoy tekhtiologii im.
(!7j.V.) Lomonosova - Mozc.ow Institute of Fine Che7-d3al Technology
im,eni M. V. Lomonosov). High-Tenperature Modification of SPOG)Zia-L, 5
Pl-yushchev, V. Ye. [Mo!,eow Institute of Fine Chemical Teallnology
'a
rd 2/5

Rrare Alkali Collection (con'.. S-W/5747
of Sciences USSTI]. Dim.ing Building Material rron. Industrial
""astes 51
Fo3ucktov, 11. 13., and 11. P. Nlikonova. (Inatitut obohchey i
All, Ulcrainoltoy 22P, - ln:,,titut~ of Gcn~ral
and lnor_ranic CliclaiStry of the Ac;~dc-,,iy of Scionecr, Ukraln,.-kaya
322,1]. Uoe of P,1,otomc1.rr-of-Flcmc! 1-1-3thodo in Analyzing Orel)
and Salto of'Rarc Allcal.!. Metals 1 63
Zak, B. M. [1r1cutskiy Lnotitut rodhi1rh metallov - Irkutsk
ln~-,Utute of Raro Eetalfl. IlLthoda of Deterinining Rare
Ble-ents 71
Zakhariya, N. F. and Ts, A. Leydei-man, (Institut ob;z;,cbey i
neor3anichaskoy Uimii AN SSSIR - Instituto of Concrall and .
1-torganic Chemistry of the Acad=y of Sciences USSR). 47:~thods
cf C~aantitative Spectral Determination of Rare Alkali 1!otalB
in Ores and Evaluation Df the Impurity Content in Ore Prep-
arations 75
Card 4A

F01mg-py, N.S. -
Determination of umall quantities of zirconium in ores. Trudy Kom.
anal. khim. 12:13,.,"-141 160. (MM 13:8)
(Zirconj.um) (Colorimetry)

5.5310
AUTHORS: Kononenko, L. I., Poluelctov, 14.
TITLE: Photometric Determination of Ger,maniwii Using
o-Dihydro-cychromenols
PERIODICAL: Zhurnal a~ialyticheslcoy khImii, 1~460.. Vol 15, Nr 11,
pp 61-68 'USISR)
ABSTRACT: The four ,omDounds given ,-iere synthesized and testeci
as reagents ~or spectrophotomel.-Oric ~,etermination o4'
germanium:
cI 1, 013
o 4,\ / :, I
cl
,1o,\, cI I, III-11 cl 13
0
Card 1/1~f3

Photometric netermination of Germanium
Using o-T)Ihydroxychromerjols
10'
(J.
ill I IJ
7775 0
/-17 C;
OV)
6,7-dlhycli-ox,.r-2,21-di-,.iethylbe-tizo~)yrill.u~,i-t ~hlor.,Icle
7,8-dihydi oxy -2. 4 -dime thyl benz op-r li,.m chl ori-(~r Tj
6, 7-dihydr oxy-2., 4 -d lnhenyl ben zop.;rl 11 chlorlde f -f.T'T'i
r)
7,8-dihydroxy-2, 4-(14 chilo~
Card 2

Photometric Dete-mlinat-lon o-
Using o-Dihydroxychromonol.-I Sov/'(~71 -1
Depending on p1l, they pro.:Iuce different colov:~' oue to
the format~*_on of different lonic fopms, fo r e x e
PH 1-2
_40
1-10111 L/
1-10 0
3-."
1101 1! I_
1 to 0 Of I
C.61 4
lio 0
C.1 1,
0-0 0
(a) Cation c~f Iv, :)range-red; (b) ba-_e or, (C) ulehl,!-
drated N-13e of' JIV, (d) '1111011 of , (te
of IV, vlolct.
Acid gemanium solutions (0.114 HC1) produce color
Card 3/13 changes w1th the auove reagents (see Table 2).

'7:~!-j
Photometric Determination D-f Germanium 77 f -'-
Using o-Dihydroxychromeno13 SOV-175-15-1-12/29
Table 2. C)lor change of acid dyes solution on addi-
tion of c-er:nanium
,9ale yellow
bright yellow
C~
They pi,oduce olm-littv co'lor ,.t1:io 1~u iddition ol' tAje
following e-ementz: Zi,, Hf, TI, Ili, Mo, W, V, Ta,
Nb, and Sn. The ve--igents (I, HE, IlI, IV) %..,ere ob-
I U
tained accoi,dinF, to t4he method of Bulow, C., SIcherer,
col~Dr in O.lN HCl
color after addition
of germanium

Photometric Determinat'.or. of G-jrmanlum TT 7 L:') C)
Using o-Dihydroxychromenols SOV/75-15-1-i2/29
W., Ber-, 34, 3916 (19o1). Reagents I and I! form
colored complexes with Ge, which are soluble in
water. Reagents III and IV form colored complexes
with Ge, insoluble in v.,ater, but the complexes can
be held In the solution by the addition of gelatin,
Conditicns of the complex formation, stability of the
color, Effect of time and acid concentration on the
optical densities of the colored Ge complexes were
studied. The optical densities viere measured using
SF-4 spEctrophotometer or FM-l photometer, also
photoelectric colortmeter FRK-M can be used. Other
details and results of the experiments are shown in
the tables and figures which follow.
Card 543-

Photometric Determinatio:i of'
Using o-Dihydroxychromenols
Absorption
compound II
7775-1/0
SOV,/6(5-15-1-12/29

Photometric Determination of German-41ur.,i
Using o-Dihydrozychrorrienols
---k .
777 5 ()
7;
" 0711 / 7 ~:: - I t-:~ - 1 - -12 /2
Fig. 2. Absorption curves of solutions: cojnpoun(i III
(1); complex of III with Ge(2); compound IV (5);
Card 7/1-3 complex of IV with Ge (4).

Photometric Determination of Germanium 7Y750
Using o-DihydroxychromenoLs SOV/75-15-1-12/2c)
Card W13

1 420 0,1 -0,6 IW
11 5w-J30 (),O!-0,2 i W
111 "00 p, t -0,6 0,1
W 600-42 P. W-01 CL 0,5r"1 I
Table 3. Conditions of germanium determination using
compounds I', II, Ill., IV (a) reagent; (b) wavelenith
( A M); (c) optimum concentration of HC1 (IM); (d)
ardount of reagent added f'or 10 ml of solution; (e) re-
a.-ent; (f) 1% gelatin 2olution; (g) sensitivity of
the method In (in 10 ml solution); (h) maxIML1111 of Ge
in I
~O nil of soliftlun, obeying Beer's law;
(1) 2 ml. of 0.2% aqueo-tis solution; (J) 0.5 in! 04' 1%f
aqueous solution, 0.5 of 0.2% aqueous solution;

f , '?,
Photometric Determination of Germanium
Using o-Dihydr-oxychroinenois SOV/6(5 - 15 - 1 -12 12 c)
(Caption to 11able 3 continued)
(k) 0.5 ml of 0.2% alcoholic solution; (m) 0.5
ml of 0.2% alcoholic solution.
Table 4. Conditions ot-1, Lh]
of determination of
composition of the
colored compounds IV
of Ge with reagents
I'II, III EV. (a)
reagent; N total
concentration of
the compone~it, M;
(c) acidity of
the solution based
on HC1 N, (d) al-
cohol concentration,
%; (e) gela~;In concentration,

S/075/6o/ol5/02/01/004
B005 BOo6
AUTHORS: Poluektov, N. S., Popova, S~ B., Ovchar~ L. Ao
TITLE- A Recording Flame SpectrophotometeAand Its Use
PERIODICAL. Zhurnal analiticheskoy khimii, 1960, Vol. 15, No. 2,
pp. 131-137
TEXT: Flame spectrophotometerB using monochromators of the typ~~~2-'_,S!
(UM-2) (Refs. 192) or attachments type C'k-4 (SF-4) (Ref. 3) have several
disadvantages for flame-photometrio determination of elements in high
dilution which are descrLbed in the introduction to the present paper.
In a previous paper, (Ref- 7). the authors described a recording
speotrophotometer with iacrea8ed spectrum range for the determination of
certain rare-earth metals, In the present paper, an instrument of the
same type is applied fox determining several other elements., Apparatus
applied and mode of opexation are described in detail. The spectro-
photometer consists of a, universal monochromator type NTPJ~-2 UM-2)
connected with a mechanJsm for turning the wave-length drum Mg.. 1) and
Card 1/3

A Recording Flame Speotrophotometer S/07 60 015/02/01/004
and Its,Use B005%00~
an electronia,reoording p,.Aentiometer typellL=1-k:~ ~PS-1-02). A Figure
illustrates the circuit diagram of the cathode follower applied. The
anode of a photomultiplier type t-)11-19 (FEU-19) (for elements with
bands in the visible range or type,5,3V-22 (FEU-22) (for the infrared
range) was connected to the grid of the cathode follower. The accuracy
of determinations depends on the ratio of the records for the background
and the peaks of the lines. Table 1 shows the deviations in the record
of lithium lines (at various concentrations) in the presence of large
amounts of sodium. It is evident that the recording photometer described
guarantees a much higher accuracy than it is attainable by measurements
involving galvanometer ritadings. In the present papert a detailed
description of flame-phoi:;ometric determination of the following elements
is given. lithium in NaGlv, rubidium in the presence of large amounts of
potassium, calcium impur::~tiSB in strontium salts~and salts of rare-earth
metals (with two.Tables )f analytiea.l. data), strontium in sea waters
and manganese in presenc,) of large amounts of potassium, Mnes recorded
by the speotrophotometer in the above six determinations are shown in
six Figures. The recording spectrophotometer described-in this paper has
Card 2/3

-~ POLUKTOT. N. S. ;
Relation between i'adiation intensity and the concentration of
18 elements in tho flame -photometric method of analysiss
Zhur.aml.khim. 15 no.3:264-271 YT-Je 160.
(KRA 13:7)
Institute of (kineral and Inorganic Chemistry, Academy of
ences, Ukrainian S.S.R.. laboratories in Odessa.
(TIALme photometry)

S/075/60/015/004/012/030/xx
B020/BO64
AUTHORS: Poluektov, N., S. and Popova, S. B.
TITLE: On the Mu Lai Influence of the Elements Upon the Intensity of
HadiationXin a Flame. Communication 2. Compounds Formed in
the Extinction ofvlCalcium and15t.rontium Radiation With
VA Aluminum, Zirconium, and Uranium Salts
A - I
PERIODICALs Zhurnal analiticheskoy khimii, 1960, Vol. 15, No. 4,
pp. 437 - 4.,12
TEXT: An extinguishing influence upon the radiation intensity of Ca and
Sr exert, apart from Al, mainly Zr, Be, V, Th, Ti, U, and Cr, which is
said to be due to the formation of compounds of the mixed oxides of these
elements, and the alkal-ine-earth metals in the flame, which reduces the
concentration of the atoms Ca and Sr in the gases of the flame and the
intensity of their radiation. By using two atomizers supplying one flame,
the authors showed that the most probable reason for the reduction of the
luminous power of Ca and Sr by Al salts is the formation of difficultly
volatile compounds of A120-,, CaO, and SrO in the flame at the moment of
Card 1/4

On the Mutual Influence of' the Elements Upon S/075/60/015/004/012/030/XX
the Intensity of Radiation in a Plame. B020/BO64
Communication 2. Compoundo Formed in the Extinction of Calcilz.
Strontium Radiation With Aluminum, Zirconium, and Uranium Salt3
evaporation of one drop of aerosol of the analyzed solution. The luminous
power of Ca and Sr is not reduced if the aluminum salt is introduced into
the flame by a different atomizer. To investigate the composition of the
compounds forming betweer, Ca (Sr) and Al, or other extinguishing elements~
the method of isomolar series according to Ostromyslenskiy-Job was used,
the reduction of the lum:i.nous power of the element in the flame being
chosen as characteristic value of the formation of the compound. The flame
spectrophotometer previously desc 'b d which consists of a universal
.ri e
monochromator 9fathe YM-2 (~UME2Y2*ty e photomultiplier of the types
4i)Y 2 FEU-22 a mirror
-19 (EER-12)-*and NY-2 U_ -galvanometer, and an
acetylene- and propane-butane-air flame were applied. The mode of inter-
action between Ca and Sr salts, as well as Zr and U salts was photo-
metrically determined (Table 1). Table 2 shows the composition of the
solutions used to determine the composition of the Sr-Zr compound. The
curve of the ratio between the atomic numbers of the metals in the
Sr-Zr compound is plotted (Fig. 1) on the basis of the photometric
results; the photoelectric current is recorded in percent of the maximum
Card 2/4

On the Mutual Influence of the biements Upon S/075/60/015/004/012/030/xx
the Intensity of Radiation in a Flame. B020/BO64
Communication 2. Compounds Formed ir the Extinction of
Strontium Radiation With Iluminum, Zirconium, and Uranium Salts
as a function of concentration. Table 3 gives the calculation technique
for the Ca-Zr compounds with the help of various correction factors, Pig.3
gives the diagrams obtained from the composition of the compounds of Ca
and Sr with Al. The maximum in Fig. 4 (as well as in Figs. 1 and 2)
corresponds to a molar ratio of-Ca(Sr):Zr = 1:1 (for nitrates). Thus, the
compounds in the flame are likely to have the compositions CaZrO 3 and
SrZrO 3' In CaC12and zirconium solutions (Fig. 5) the maximum of the
curve lies, in the case of a propane-butane flame; at a ratio of Ca.Zr-3W,
where Ca3Zr207 is likely to be formed, while the curve shows no distinct
maximum in the case of the hotter acetylene flame. With Ca and U., com-'
pounds of different compositions form, while with Sr and U, compounds
with a molar ratio of Sr:U - 3:2, but also 10 and 20 are formed
(Figs. 6,7). There are 7 figures, 3 tables, and 16 references: 5 Soviet,
I Swedish, 4 German, 3 US, I Japanese, and 2 British.
Card 3/4

On the Mutual Influence of the Elements Upon S/075/60/015/004/012/030/XX
the Intensity of Radiation in a Plame. B020/BO64
Communication 2. CompoundE Formed in the Extinction of Calcium a-!.!
Strontium Radiation With Aluminum, Zirconium, and Uranium Salts t/
ASSOCIATION: Institut obahchey i neorganicheskoy khimii AN USSR,
Laboratorii v Odesse (.Institute of General and Inorganic
- Chemistry of the AS UkrSSR, Odessa Laboratories)
SUBMITTED: May 23) 1959
Card 4/4

POIZWOT, U-S-; MEDNOVA, M.P.; GRINUTD, S.Z.
Determination of-11thium and cesium in oree by the use of a
flame photmeter with an integrator. Zav.lab. 26 no.2:161-163
16o. (MIM 13:5)
1. Iaboratorlya Irstituta obahchey I neorganichookoy ithimii
Akademit nauk USSF,.
(Id.thium-Analysis)
(CcIsium-Analysis)
Mwtometers)

S/073/60/026/002/012/0'z
B023/BC)67
AUTHORS: Kononenko, L. I. and Poluektov, N. S.
TITLE: Application of O-Dihydroxy Chromenols for the Colorimetril-
Determina-,';ion of Zirconium and Hafnium
PERIODICALi Ukrainskiy khimicheskiy zhurnal, 1960, Vol. 26, No. 2,
pp. 246-253
TEXT. To examine the applicability of dihydroxychromenols for the
colorimetric determination of zirconium and hafnium the authors studied
four representatives ol this group
6,7-dihydroxy-2i4-dimethyl benZODyranol chloride
7,6-&.hydroxy-2,4-dimethy1 benzopyranol chloride
6,7-dJ'hydroxy-2p4-diphenyl benzopyranol chloride
and 7,8-dihydroxy-2,4-diphenyl benzopyranol chl-o:ride
The authors found that these reagents are less efficient than aTsenazs-
and alizarin red produ,.ed earlier as to the specifity of determ-,nation.
6,7-dihydroxy-2,4-dipbanyl benzopyranol, however, has a higher sensitivi'~;
Card 1/3

4
Application of o-Dihydroxy Chromenols for the S/073J60/026/002/012/0111~
Colorimetric Determinat:!-on of Zirconium and B023/BO67
Hafnium
and therefore may be us,-zd ~for detecting zimonium and hafnium, traces. T125~
colored zirconium and. hafnium complexes contain two moleculas of the z--e-
agent bonded to one metal atom (zirconium or hafnium). The authors de.-
termined the apparent formation constants of zirconium and hafnlum com-
plexes as well. as the rolecular extinction coefficients according to the
following equation: Me02+ + Mw=N~tMeOA 2 + ?H+ and. according to the
formulas K - 1 - CA E where o( denotes the degree of
f ormatiovi 2 C.-.P
C
dissociation of the coiiplex with stolchiometric ratio of the c,:)mp-sne,ats,
C - -concentration of metal i or s9 E - maximum extinctf on value, E - molar
extinction coefficient,, and 1 length of the bulb. The authors pr-3ved that
the reagents described can also be used for dqtermln-ing zi-rconium in pYLcL-,-
phate ores if zirconiwa is first isolated as phosphate. Table 3 shovs the
values of the apparent formation constant of the four Yeagents. There Evrg!
6 figures, 5 tables, aad 20 references: 10 Soviet, " US~ and 1 Japa-'.19se.
ASSOCIATION3 Institut obshchey i neorganicheskoy khimii AN IUSSR, labc--r;i--
toriya v Odesse (Insilitute of General and Inorganic;
Card 2/3 Chemist:ry AS UkrSSR, Laboratory in Odc-ssa)

Application of o-Dihydrcxy Chromenols for the
Colorimetric Determination of Zi--rconium and
Hafnium
SUBMITTED: March 13, 1959
S/073/60/026/002/012/01~1-,
B023/Bo67
Card 3/3

IOLMMTOV, B.S.; vinun, R.j..
Mutual effect of elements on the intensity of radiation in a flame.
Part 3: Composition of the compounds formed during the quenching
of radiation rrom calcium and strontium by, molybdenum, vanadium,
and titanium. Ukr. khim. zhur. 26 no.5:648-652 16o.
(MMA 13:11)
1. InatittLt obshchey I neorpnicheako7 khimii AN USSR.
(Calcium c#mpounds--Spectra)
(Strontiunkcompounds-5pectra)

S/032/60/026/008/026/046/XX
B020/BO52
AUTHORS: Poluektov, N. S,, and Ovehar, L. A.
TITLE: Anion Effect in the Determination of the Elements of Rare
Earths by tho Method of Flame Photometry
PERIODICAL: Zavodskaya laboratoriya, 1960, Vol. 26, No. 8, pp. 964-966
TEXT: The effects of acids and salts on the results of flame photometry
were investigated. The authors used a spray apparatus, an acetylene - air
flame, and a spectrophotometer with automatic recording of the spectrum,
which was equipped with a monochromator of type Y11-2 (UM-2), a photo-
multiplier of type E)Y-lcM (FEU-19M) and ~3,9y-22 (PEU-22), and an auto-
matically recording potentiometer;9nn-og (EPP-og). Fig. 1 gives graphical
representations of the dependence log I = ?(log C) for the molecule bands
of yttrium 613 mm. From the data obtained one may conclude that the addi-
tion of nitr-ites into th(t flame does not cause the quantitative evapora-
tion of yttrium from the aerosol particles. This is due to the formation
of a difficultly volatile oxide during the evaporation of the solution.
The photometry of the sp-actra of the sulfate solutions of rare earths
Card 1/3

Anion Effect in the Determination of the n,/032/60/026/008/026/046/XX
ents of Rare Earths by the Method of B052
Flame Photometry-
showed that the peak of tho molecular bands of LaO 14k has the same in-
tensity as that.in the speotrum of the chloride solu .)n. As compared to
the bands of EuCl 3' those of europium at 459.6 mp are feaker by approxi-
mately 60%. The molecular band intensities of YO 617 IA, ErO 498 mp, and
Yb 398-8 mae are practicallj reduced-to zero. Addj* is of chlorides,
sulfuric acid, and sulfatea to the solutions, - - cause the radiation
extinction of the rare earths. The method of iae two spray apparatus
(Ref- 7) was used for the aleplanation of the extinction mechanism. The ex-
periments showed (see Tabla) that sulfuric acid extincts the radiation
only when it is contained in a solution containing also chlorides of rare
earths. The formation of difficultly volatile compounds during the evapora-
tion of aerosol particles is probably caused by sulfuric acids Phosphoric
acid has the same effect as sulfuric acid and reduces the intensity of the
spectra of the rare earths. The modified method of isomolar series was ap-
plied for determining the composition of the difficultly volatile com-
pounds formed. Figs. 2 and 3 give the dependence of Al on the composition
of the solution. AI characterizes the extinction of the band intensity or
Card 2/3

S/032/60/026/010/023/035
B016/BO54
AUTHORS: Poluek ov. N. S., Ovehar, L. A., Kuchment, M. M , and
Nikol I t%kiy, M. A.
TITLE: The Use of a Spectrophotometer C~-4 (SF-4) for the Purposes
of Flane Photometry 21 z
PERIODICAL: Zavodalcaya laboratoriya, 1960, Vol. 26, No. 10,
pp. 11"52-1154
TEXT: Spectrophotometers with automatic scanning of the spectrum and
spectrum recording offer special advantages in flame photametLy. The fol-
lowing instruments are produced in Rthe USSR: mcn-51 Q:SP-51) with an
accessory instrument ~an_i - 8
_(FEP-1 -3;,~ (PS-L~Ind the spectro-
photometers cn-61 (sr-_61)'-,'0A4~5C- WS-4)", and-A---fC-14 (~FS-14)".6Their
suitability for flame analysis has, however, not yet been clarified.
Previously (Ref- 5), the authors had described a recoTdir2g instrument
which W s constructed on the basis of a universal monochromator YM-2
(UM-2)99
'. This instrument is particularly suited for the determination
of some individual rare-earth elements. The authors designed an
Card 1/3

The Use of a SpectrophDtometer CI -4 S/032/60/026/010/023/035
(SF-4) for the Purposes of Flame Photometry B016/BO54
instrument of a similar type having quartz optics and permitting the de-
termination of elements on the basis of lines ofthe ultraviolet part
,Aey used a speotrophotometer for ab-
of the spectrum. For this purpose, t
sorption measurements C - The photocells were replaced by
~3y_ie (-FLEU-18 tor the visible and ultraviolet spectrum
photomultipliers
range, as well as TFEU-22 for the infrared range. The output
of the photomultipliez was led into the cathodic repeater which was con-
nected with the input of the electronic recording potentiometer 66-02
(PSI-0211TThe photomultipliers were fed by a high-voltage rectifier
BC3-2500 (VSE-2500) VFig. 1 shows a block diagram of the apparatus. The
revolving mechanism for the drum of the wavelength scale is shown in
Fig. 2. Table 1 gives the times required for adjusting the picture of
the spectral line to the exit slit (0.1 mm) for different wavelengths.
Table 2 shows the sensitivity of determination for individual elements.
Table 3 shows the reproducibility of line-recording for copper and mag-
nesium. The attainab.-,.e accuracy is higher than that of ordinary spectro-
photometers. The design suggested guarantees determination of various
elements with high ancuracy. There are 3 figares, 3 tables, and 5 refer-
ences, 1 Soviet and [ US.
Card 2/3

he_Use of a Spectropl:otometer CIP-4 S/03 60/026/010/023/035
SF 4) for the Purposis of Flame Photometry B016~04
T
ASSOCIATION: Institut obshchey i neorganicheskoy khimii Akademii nauk
USSR
(Institute of General and Inorganic Chemistry of the
Ac~~- of Sciences UkrSSR)
Card 3/3

0 il) F__ t -"I C
PHASE I BOOK EXPLOITATION SOV/5777
Vinogradov, A. P., Academician, and D. I. Ryabehikov, Doctor of
Chemical Sciences, ProfessorResp. Eds.
Metody opredeleniya I analiza redkikb elementov (Methods for the
Detection and Analysi;i of Rare Elements) Moscow, Izd-vo AN SSSR,
1961. 667 P. Errata Blip inserted. 6000 copies printed.
Sponsoring Agency: Akademiya nauk SSSR. Institut geokhimli I
analiticheskoy khimil Im. V. 1. Vernadskogo.
Ed. of Publishing House: M. P. Volynets; Tech. Ed.: 0. Guslkova.
PURPOSE: This book Is intended for analytical chemists and for
students of analytical chemistry.
COVERAGE: The handbook was published in accordance with a decision
of the Vsesoyuznoye zoveshabaniye po analizu redkikh elementov
(All-Union Conference on the Analysis of Rare Elements) called
Card 1/5

Method4lbr the Detection (Cont.)
SOV/5777
together by the Gosudarstvennyy nauahno-tekhnicheakiy komitet
Soveta Ministrov SSSR (State Scientific and Technical Committee
of the Council of Ministers of the USSR) and the Academy of
Sciences USSR in'December, 1959. The material is arranged In
accordance with the g7roup position of elements in the periodic
s3stem., and each seat.-Lon is prefaced by an article discussing
the analytical methods most used in the Soviet and non-Soviet
countries. Each section deals with the physical, pbysicochemical,
and chemical methods for the analysis of raw materials, semi-
products, and pure mVtals, and Is accompanied by an extensive
bibliography listing works published In the field in recent years.
The following are mentioned for th6ir help in preparing the book
for publication: I. P. Alimarin, 6. N. Bilimovich, .'.. I. Busev,
E. Ye. Vaynshteyn, M. P. Volynets, V. 0. Goryushina, A. M. Dymov,
S. V. Yelinson, 0. Ye. Zvyagintsev, G. M. Kolosova, Ye. K.
Korchemnaya, V. 1. D.-bedev, G. A. Malofeyeva, B. N. Melentlyev,
V. A. Nazarenko, 1. 1. Nazarenko, T. V. Petrova, N. S. Poluektov,
A. I. Ponomarev., V. A. Ryabukhin, N. S. Stroganova, and Yu. A.
Chernikhov.
Card 2/5

Metbods,'for the Detection (Cont. SOV/5777
TABLE OF CONTENTS:
From the Editors 3
Vinogradov, A. P. Problem of the Purit y of Materials
Sazhin, N. P. Industrial Quality Requirements of High Purity
Metals and Materials for Semiconductor Technology
Poluektov N S., and V. T. Misbohenko The Present State
0 e al ytie 1 Chemist.:ry of Lithium: Rubidium, and Cesi= 37
Goryushina, -V. G. Present State of the Analytical Chemistry of
Beryllium 79
Polaektov.-
~Afial
tiMal N, S,, and V. T.' Mishchenko.
f St
Ch
t
ti
i Present State of the
108
y em
s
um
ron
ry o
Ryabehikov, D. I., and V. A. Ryabukhin. Preagnt State of the
Card 3/5

96th6ds' for the Detection (Cont. SOV/5777
Nazarenko, V. A. Present 13tate of the Analytical Chemistry of
Germanium 400
Zolotavin, V. L. Present 3tate of the Analytical Chemistry of
Vanadium 462
Alimar~n, 1. P., apd 0. M. Bilimovich. Present State of the
Analytical Chemistry of Tahtalum and Nioblum 487
Busev., A. I. Present State of the Analytical Chemistry of
Molybdenum 537
Troitskaya, M. I. Present State of the Analytical Chemistry of
Selenium and Tellurium 580
Ryabchikov, D. I., and Yu. B. Gerlit. Present State of the
Analytical Chemistry of Rhenium 628
AVAILABLE: Library of Congress JAIrsVee
Card 5/5 li-l-bl

POLUFKTOV N S.- KONONENE.0, L.I.
... ~-_
Spectrophotometriv: study of carbonate complexe5 of rare earth
elements. Zhur.nfiorg.khim. 6 no.8:1837-1842 Ag 161. (KIRA 14:8)
1. Institut obshcliey i neorganicheskoy khimii AN USSR.
',Rare earth carbonates--Spectra)

POLUTEKTOV, N. .; VITIKUK.. 3R.A.
Increase of the ridiation intensity of metals in a flame as a
result of the quenching of ionization. Zhur.anal.khim. 16
no,3:260-267 My-Ja t61. (~MU 14:6)
it"! 1. Inatitut obshchey i noorganicheskoy khimii AN USSR, Laboratorii
v Odessa.
(ALkali metals--Spectra)

POLUSKTCV, N.S.
Atomic absorption flame photometrj. Zav.lab. 27 n-).7:830-836
161. (MIRA 14:7)
1. Institut obshcbey i neorganicheskoy kbimii AN USSR.
(Flame p hotmetry)

LAUER, R. S.; FOLUEKTOV, N. S., doktor khim. nauk
Determination of the hafnium oxide content of a mixture of
zirconium and haf2ium oxides based on the measurement of the
intensity of beta rays. Khim. prom.[Ukr.] no.1:76-79 Ta-* 162.
(MIRA 15-10)
1. Institut obshcheyi neorganicheskoy khimii AN UkrSSR (labora-
torii v Odesse).
(Hafnium oxide) (Zirconium oxide) (Beta rays)

,-WM~
KONONENKOP L.I.; NLM -.6"
Phenauthroline conplexes of rare earth elements in solutions.
Zhur. neorg. khim. 7 no.8-11869-1873 Ag 162. (MIRA 16t6)
(Rare earth compounds)
(PtAnanthroline)

B/075/62/017/007/003/006
B119/B166
AUTHORSt Mishchenko, V. T., and Poluektov, S. S.
TITLE: Spectrophotometric determination of rare earths in solutions
of ethylene diazine tetraacetic complexes
PERIODICAL% Zhurnal analiticheskoy-khimii, v. 17,-no- 7, 1962, 825 - 830
TEXTs When rare earths are converted to their ethylene diamine tetraacetic
complexes other elements preaent in the analytic solution with a view to ,
spectrophotometric determinLtion have a disturbing effeett the possibility
to'elitilate this efftet was explored. The absorpti-on spectra of Pr, Nd, Sm,
Eu, Gd, Dy, Ho, Er, Tu, and Yb complexes in aq4eous solution.were in-
vestigated. As compared wi-,".h the spectra of non-complex-bound elements
most of these spectra show a 1 - 6 mIAshift of the absorption maxima toward
longer wavelengths. The height of absorption maxima of complexes is
3.1 - 2.6 times that of the maxima of free ions. A complexone III concen-
tration of 0.1 mole/liter, and a pH of 6 - 9, were found to be optimum V__
for invebtigations with rare earth contents of up to 10 mg/ml (referring
to their oxides). Amethod with a sensitivity of 0.03 Mg/ml for Pr 6011
Card 1/2

S/075/62/017/007/003/006
Spectrophotometric determination... B119/B186
and Nd203 and 0-07 mg/ml for Sm302 was developed for determining Pr, Nd,
and Sm. Pr is measured at 4.18 w#v Nd at 526-5 or 747-5 mij, Sm at 404 and
418 m/k. The error width is inuch reduced by the presence of NH4NO3when
determining Pr, Nd, and Sm, and by ammonium acetate whdn determining Nd.
There are 5 figures and 3 tables. The most important English-language
reference iss T. Moeller, J. C. Brantley, Analyt. Chem. 22, 433 (1950).
ASSOCIATION's Institut obshchey i neorganicheskoy khimii AN USSR,
laboratorii v Cdesse (Institute of General and Inorganic
Chemistry AS UkrSSRI Laboratories in Odessa)
SUBMITTEDt October 13, 196-1
Card 2/2

POLUEKTOV, N.S.; VITKUNq E.A.
Atomic absorption flame photometric determination of cadmium. Zhur.anal.
khim. 17 no.8:935-939 N 162. (MIRA 15;12)
1. Institut of Guneral and Inorganic Chemislt~y, Academy of Sciences,
Ukrainian S.S.R., Laboratories in Odessa.
(Cadmiurn-Analysis) (Flame photometry)

POLUEKTOV,_j,,~~.j GRINZAYD, S.E.
Atomic absorption photometry of a flame. Izv. AN SSSR. Ser.
fiz. 26 no.7.-948-949 JI 162. (FJRA 15:8)
(Photometry) (Flaw)

S/032/62/026/007/001/011
B179/B101
AUTHORS: Kononenko, L. I., and Poluektov. N. S.
TITLE: Complexometric determination of Bf in an Rf-Zr mixture
PERIODICAL: Zavodskaya laboratoriya, v. 26, no. 7, 1962, 794 - 796
TEXT. Direct titration of Hf in an Hf-Zr mixture with trilon is
described, thereby contrasting with L. Ottendorfer Chemist-Analyst, 48,
no. 4, 97) 105 (1959)). Sul 'fonaphthol azoresorcin ~4-sulfo-2-hvdroxy
naphthalene-l-azo-4'-It,7,t-dlhydroxy benzene) or picramin azochromotrope
were used as indicators, Making it possible to carry-out the titration
in the presence of disturbing foreign ions (up to 200-250 mg 502-, 100 mg
4
Sn(ii), Sn('IV), Fe(II). In the Hf(Zr) - trilon complex there ig 1 atom
of metal in 1 molecule of trilon. In mixtures containing 2.5 98% Ef
the latter could be determined with a maximum error of 1 0.5%. There are
2 tables.
Card 1*/2

S/032/62/028/007/001/011
Complexometric determination ... B17.9/B101
ASSOCIATIOM Institut obehchey 'i neorganicheskoy khimii Akademii nauk
USSR (Institute of General and Inorganic Chemistry of the
Academy of Sciences UkrSSR)
Card 2/2

POLUENTOV, N.S.
lw~ -a
Flaw photometric method
no.9tlO69.-1072 162.
of analysia (vurr")v Zsava 3Ab. 2-8
(MIRA 16:6)
(rlams photmetry)
(Spectrophotometry)

POLIJEKTOV.s N.S.; OVCHAR, L.A.
Extraction of ra.-m-eartli elements as ternary salicylkU-
I pyridine complexe-t. Tiady Kom.anal.khim. 14:154-159 163.
(IMU 16.11)

POLUERTOVY NO*S,; VITKUN, R.A.
Atomia4beorption determinattmr of nercary by f2ame photometry.
Zhur. wial. khim. 18 no.1.37-42 Ja 163. (MIM 16:4)
11 Institute of Coineral and Inorganic Chemistry, Academy of
Sciences, Ukrainian S.S.R., Laboratories in Odessa.
(Mereury-4mlyals) (Flame photometry)

POLUMOV, U.S.; C-P,11-:ZAYD, S.E.
Device for the atoirt-absorption spectrophotomatry of a flwne. Zav.
lab. 29 no.8:998-1000 163. 16:9)
1. Institut obshchey i neorganichoskoy khimii All UkrSSSR.
(Flamo photometry) (Spectrophotometry)

POLUEKTOV,, N.S.; 7SERKASEVICH, K,V.
Complexes of rare earth element's with gallic acid, Zhur.
neorg. khim. 9 no.7:1606-1612 JI 164. (~CRA 17:9)
1. Inst-Itut obnhol.ey i ne organ iche skoy kh4-.-,T.-1i AN UkrZ-;-qR,
laboratoriya v Odcase.

POLUEKTOV, N.S.; KONONENKO,. L.I.; VITKUN, R.A.; NIKONOVA, M.P.
Quenching europium luminescence in crystals of chelate compounds in the
presence of other vare earth elements. Opt. i spektr. 17 no.1:73-77
JI 164. (MIRA 17:9)

0804-66 E','IT(m)Ag~i)ZyEt~IP(.t)/E~'[P(b) IJP(c) JD/JG/GS/R1A
ACC NRs AT502163.79. SOURCE CODE: :UR/0000/65/000/666/0096/0106
A
UTHORi--'Poluektov, 14. S~;. xoi;-6rt~nko, L. I.
'Ind'- d
'tr'rLE:,.~'Flit6romet-kic~ih6thode~,bf determining tivi ual rare earth elements
SOURCE: AN SSSR.' -Institut geokhImiH analitiche6koykItimil.5- Sovronennyye metody
analiza; mRody issledovanrya kilmicheskogo sostava I strFyenlya veshchestv (Modern
methods of alysis;,m hods of Investigating the chemical composition and structure of
an et
:.substarices),:96-106
TOPIC TAGS: rare earth elemi-6t, analytic chemistry, fluorescenc electron transition,
.~cerlum, samarium, europium. terbium, dys 'rosium, lanthanum, yttrium, lutetium.
sp
ABSTRACT: The nuorometric: method makes possible the- solution of:some specific problems
in.1the'analysis lo-determine the 4ndividual rare. eartb:elements In their compounds, and it is
particularly sensitive. with req 66t to several of the. elements. . E~datlng fluorometric methods
make use~of either the fluorescint capitbilftles of Ions of rare earth elements, or of the fluo-
rescence.of the organic part of the molecule of the complex formed with a suitable reagent.
'the pres'ent review deals mainly with methods which employ fluorescence related to the
electron transitions in the 4f-sl 'tell. It Is: shown that the methods discussed are at present
applicable for the determination of Ce, Sm, Eu Tb, and Dy. The development of methods
-Card
1/2
C-0-rd

L 15304-A-6 2-VIT(MVE (Offi'G(M) 1VP(hj)1~T1VF~-111'1C)6E111 b6
t-d6DFt-1fWW78/K 011/001- 009310098--l
ACC NRI R
0
ONO
AUTHORS Tserkasevich. K& Yefr-Yu&h:Ln#4jjjLY. - Foluektov, J& S.
13
ORGt Institute of General wA Chemistry or Academv -of.Sciances -UkrSSR#
Odessa Laboratories (Institut obahchey i neorganicheskoy khiaii Akademii nauk UkrSSR 0
Laboratorii v Odessa)
TITLEt Complexes of,neogy"? holmiumo and arbium with pyro allosulfonic acid7
5 51 J-e~. 5'~/ i-q ~3 1 1
SOURCE: Zhurnal neorganicheskoy khimii, v0 3-1, no. 1, 1966, 93-98
TOPIC TAGS: rare earth metal.,'holmium, compound., erbium compound) neodymium, compound.,
complex molecule/ LP-58 potentiometer$ SF-10 recording spectrophotometer
ABSTRACT2 Formation of Nd, Ho, and & comRLM-e-slwith pyrogallosulfonic acid (1) was
investigated by using potentiometric and spectrophotoraetric qathods. Results of
potentiometric titrationj, perl'brmed with Doten iometen
t. , 1L-~Bllnd glass electrodesj are
sutuarized in graphs. Spectrcphotometric study of i-hJ reaction was conducted in
neutral as well as in stronq~y a3kaline (I X E011) media and was performed on a
recor4jM instrument SF-104uVrora tho data obtained by both methods., the authors
k -concludod that-in the neutrdl,mediumj, with reagent ratio M(metal)tl 1i1., the reac-
Card 1/2

Y. ~*

.MBHChENF,O, V.T.; LAUER. 31FRYUSFINA, N.F.; POLVEKTOV, N.S.
Extraction-photometa-ic det-ermination of Pome rure-eartr: t1crei:t--
with tenoyltrinucrLfICEItOnO. Zhur. anal. Icbimi. 20 no.10,103-
1081 165, (MIRA 18:11)
1. Institut ch-hekey i noorganicheskoy khizit AN IRTSSR, Lab,-,raturii
v odosse.

TISHCHENKO, M.A.; IAUER, A.S.; FOLUEKTOV, N.S.
Extraction of manielic acid salts of rare-earth elements
by butanol. Zhur.nerog.khim. 10 no.8tl925-1928 Ag 165.
(MIRA lgtl)
1. Institut obshchey i neorganichoskoy khImii AN UkrSSR,
laboratorii v Odesse. Submitted April 12, 1963.

I A--

KONON) NKO, L.I.; TISHCIIENKO, M.A.; VITKUN, R.A.; POLUEKTOV, N.S.
. I . .
1,10-Phenanthro.liaetenoyltrifluoroacetone complexes of rare-
earth elments. Zhur.neorg.khim. 10 no.1-1:2465-2470 N 165.
OMIRA 18t12)
1, Submitted April 13', 196/,.

KONO NE' N 1(O ~ I.. I NT I Y. F V A , Y t) . V, ; V I TFI I N , R . Al') I I i EKT, I VN
Fare ear-~h compleres with acetylacetane eund
2,21-dipy-ridyl. Ucr. khim. zhur. 31 no.10:1.0311-11.035, -5
( RA 19 - I
1. Institut obshc'iiey i neorganicheskoy khimii AN Ukr,13SR, laboratorii
v Odasse. Submitted May 9, 1964.

KISHCHENKO, T.T.; LAUER,R.S.; YEFRYUSHrNA, N.P-; POLUEKTOTP N.S.
Absorption-spectro-,-?hotometric determination of rare-earth
elements in tribut-,rl phosphate extrActs. Ukr. khim. zhur.
31 no. 11:1189_119r7 165 (MIRA 19:1)
1. Institut obJche7 i neorganicheskoy khimii AN UkrSS+,

TSF,RKA3EVI-,H, K.V.; YEFP*YIJSHIIiA, N.F.; POLUEKTOV,
. b- - - -
Complex compounds of neodymium, holmium, and er 4,1-
pyrogallolim1fonla acid. Zhur.neorg.khim. 11 no,1293-38
~I.i-
Ja 066. - R;".-- i,-. ~- 1 1)
1. InqtItut obshchey i neorganicheskoy khlzrdi AN Tlkr!'ml;.R,
Laboratoril v Odeiae. Submitted June 8, 1964.

L YN 00 /LVP (J) --_m
SMCE CODES 0
ACC NR, AP6o27191 Q'
AUTHOR: lauers R. S!j Ye r ushclljjn~L N. P.; Poluektovs N. S.
(PIM; Odessa lAberatories. Instit'Ute of General and Inorganic Chemistryo Academy of
(!.a~irii
v Odessep-Institut obahchoy i neorgix~cBe-skoy
ISciences, Ukrainian SSR
khimii Alcademii, nauk Ukrainakoy "ISR)
iTIMES Comole3ces of rare earth vlementsiwith ascorbic acid
SOURCEt Zhurnal neorganicheskoy khimiip v. III, no6 8j, 1966, 1883-1886
TOPIC TAGS: ascorbic acidp rare earth compound) spec41-ojoho4omelt-ic ah0-(YS/*S.1
ABSTRACTS Complexes formed by rare earth elements with ascorbic acid in aqueous solu-1
tions were studied spectrophotome-trically and potentiometrically and also by separat- j
ing the complaxos in solid form wad analyzing them chemically. Complex formation be-
gins at pH> 3p reaches a maximum around pH 6, and remains constant up to pH 6.5-6 7 ! '
The complexes have the composition Memscorbic acid :t 1:1. The apparent constant; of
formation undergo little change fi!om one rare earth element to the next and are small
indicating a low stability of the complexes. Data on isomolar series, potentiometrie'l
titration and analysis of the solfti.d complexes lead to the formula 1490(%~06)'2420 forl
their composition. Boiling of tho rare earth salts in the presence of a ar e excess
of ascorbic acid, (5% solution) procipitates elements of the cerium subgroup &, Cal
Prv J14) at PH 4-10 (most completely at pH 6-6.5), while elements of the yttrium sub-
uDCt 547.475.21
LC, r d J2

L 07924--67----EWT.(m)JI,:WPft)]TTT .1JP~(C)---JD/JG-----.- i.- - - - - . - -
ACC r'R1 AP6033386 SOURCE CODE: UR/0075/66/021/008/1018/1020
AUTHOR. Kirillov, A. .1. ; Lauer, R. S. ; Poluektov, N. S.
ORO:: Odessa Laboratories,, Instiz;ute of General and Inoraanic Chemistry, AN
Ulk,ro")" jL-CtUVj.M.G-,:-ii.v.0desse, Instituta obshchey i neorganicheskoy khimii AN
C! 1:~ %
UkrSSRI
TITLE: Fluorimetrio determination of yttrium in a mixture of rare earths after
their separation by paper chromLt.2gjaphy 1.
SOURCE:, Zhurnal artaliticheskoy Ichimii, V. 21, no. 8, 1966, 1018-1020
TOPIC TAGS: rare earth, chromatography, paper chromatography, yttrium,
yttrium determination, yttrium nil;rate, fluorimetric method, fluorimetry
ABSTRACT: A rapid fluorimetric method has been developed for the semiquantita-
tive determination of yttrium in chromatographic zones after separation of rare
earths by rneans of partition paper chromatography. The yttrium content is evaluat-
ed by the direct fluorimetry Of thE' part of the chromatogram where the yttrium zone
is located after the chromatogram has been treated by a phenyl salicylate solution.
The method has been checked on r,.eodymium nitrate solutions (25 mg/ml) containing
Card I / 2 UDC: 543.544