Gas chromatography–mass spectrometric identification of iodine species arising from photo-chemical vapor generation

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DOIResolve DOI: http://doi.org/10.1016/j.sab.2009.06.009
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TypeArticle
Journal titleSpectrochimica Acta Part B: Atomic Spectroscopy
ISSN0584-8547
Volume64
Issue7
Pages714716; # of pages: 3
AbstractUltraviolet irradiation of aqueous solutions of iodide/iodate ion containing low molecular weight organic acids generates volatile iodine species that are amenable to detection by atomic spectrometry. In the presence of formic, acetic or propionic acids, photo-chemical generation results in the formation of HI, methyl- and ethyl-iodide respectively, the latter two products being directly identified by gas chromatography–mass spectrometry. Deuterium and ¹³C-labeled reagents were employed to elucidate the provenance of the alkyl group. Use of ¹³CH₃–COOH produced ¹³CH₃–I; deuterated acetic acid (D₃C-COOD) resulted in the formation of CD₃–I. These observations indicate direct transfer of the alkyl group from the carboxylic acid to iodide, consistent with the suggestion that the mechanism of synthesis involves radical induced reactions.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedYes
IdentifierS0584854709001670
NPARC number21277195
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Record identifier31dcacdd-4cab-4b88-ba5f-3ec2ce731394
Record created2016-01-05
Record modified2016-05-09
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