YELLOW RAIN-ANALYSIS EVALUATION OF CONTROL LEAF WITH YELLOW SPOTS

• Document Type: FOIA
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 00037493
• Release Decision: RIFPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: December 28, 2022
• Document Release Date: September 26, 2017
• Case Number: F-2012-01432
• Publication Date: September 5, 1984

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Approved for Release: 2015/01/05 000037493
ANALYTICAL RESEARCH DIVISION
RESEARCH DIRECTORATE �
5 Sep 84
Analysis/Evaluation of Control Leaf With
Yellow Spots
A shipment designated I0027 M (4), also identified with LA 831024-3WT
was received by the Analytical Research Division, 22 November 1483 from
FSTC. Information concerning the sample indicated it was a control sample
yellow spotted leaf, fig 1, containerizetrin a plastic bag.
A vapor sample withdrawn from within the plastic bag was subjected
to analysis by gas chrorr atography/mass spectrometry (GC/MS). A portion
of the spots were extracted with chloroform. Another portion of the spots
were extracted with III methanohwater. The solvent soluble materials-were
analyzed by GC/MS, ion chromatography, (IC) thin layer chromatography
(TLC) and infrared spectrometry (IR).
The GC/MS spectra of the vapor associated with the leaf identified
the presence of toluene, ethyl benzene and benzaldehyde. The CC/MS spectra
of the chloroform solubIes detected aliphatic hydrocarbons from C, through
C101 and diethylphthalate. Ion chromatography was negative for all ions
or Interest. No detectable components were Separated by TLC. Derivatization
with MS detection was negative for trichothecenes. IR spectra identified
the presence of aliphatic hydroc_arbons,C-0 and cellulose.
Conclusion:
No evidence of any known CW agent, agent degradation product or trichothecene
was detected. The phthalates detected were probably from the plastic bag
used for packaging. The sample appears to be innocuous and as such an
excellent reference material.
AfF Cl-
Approved for Release: 2015/01/05 000037493
Approved for Release: 2015/01/05 000037493
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Approved for Release: 2015/01/05 000037493