Investigation of arsine-generating reactions using deuterium-labeled reagents and mass spectrometry

Mass spectrometry was used to detect transfer of deuterium from labeled reagents to arsines following hydride-generation reactions. The arsine gases liberated from the reactions of arsenite, arsenate, methylarsonic acid, and dimethylarsinic acid with HCl and NaBD 4 in H 2O, or with DCl and NaBH 4 in...

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Bibliographic Details
Published in:Talanta (Oxford) 1997-11, Vol.44 (11), p.1941-1947
Main Authors: Pergantis, Spiros A., Winnik, Witold, Heithmar, Edward M., Cullen, William R.
Format: Article
Language:English
Subjects:
Arsenate
Arsenic
Arsenite
Arsines
Chemistry
Dimethylarsinic acid
Exact sciences and technology
Hydride generation
Inorganic chemistry and origins of life
Kinetics and mechanism of reactions
Mass spectrometry
Methylarsonic acid
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Summary:Mass spectrometry was used to detect transfer of deuterium from labeled reagents to arsines following hydride-generation reactions. The arsine gases liberated from the reactions of arsenite, arsenate, methylarsonic acid, and dimethylarsinic acid with HCl and NaBD 4 in H 2O, or with DCl and NaBH 4 in D 2O, were examined. Differences in the mode of deuterium incorporation for the various arsines were detected. These results may help explain some of the observed variations in arsine-generation efficiency for various arsenic compounds present in environmental and biological samples.
ISSN:0039-9140
1873-3573
DOI:10.1016/S0039-9140(96)02079-6