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Electrospray Mass Spectra of Arsenic Compounds

✍ Scribed by M. H. Florêncio; M. F. Duarte; A. M. M. de Bettencourt; M. L. Gomes; L. F. Vilas Boas

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
68 KB
Volume
11
Category
Article
ISSN
0951-4198

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✦ Synopsis

Positive ion electrospray mass spectra of arsenobetaine, AB, arsenocholine, AK, monomethylarsonic acid, MMA, dimethylarsinic acid, DMA, tetramethylarsonium TMAs, arsenate, AsV, and arsenite, AsIII, have been obtained. When appropriate, negative ion electrospray mass spectra have been performed. In order to clarify fragmentation pathways MS/MS spectra have also been recorded. Positive ion electrospray mass spectra have been found to be more useful for the identification of the organoarsenic compounds AB, AK, MMA, DMA and TMAs, whereas negative ion electrospray mass spectra is more suitable for the identification of the inorganic compounds AsV and AsIII.

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