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Negative-ion fast atom bombardment mass spectrometry of N-phosphoamino acids

✍ Scribed by Ying-Wu Yin; Yuan Ma; Yu-Fen Zhao; Bing Xin; Guang-Hui Wang

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
248 KB
Volume
29
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

The fragmentation patterns of N‐phosphoamino acids in negative‐ion fast atom bombardment mass spectrometry (FABMS) showed different characteristics to those in positive‐ion FABMS. Six typical N‐diisopropyloxyphorphorylamino acids all had intense [M − 1]^−^ peaks, and they underwent similar fragmentation pathways. In general, the elimination of one alkene molecule followed by the loss of one molecule of alcohol occurred. They also favoured an N → O rearrangement reaction, followed by fragmentation to (RO)~2~ PO~2~^−^ and (RO) (HO)PO~2~^−^.

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