EVIDENCE THAT GAS-PHASE ION MOLECULE REACTIONS ARE RESPONSIBLE FOR THE BEHAVIOR OF CROWN ETHERS UNDER FAST-ATOM-BOMBARDMENT CONDITIONS

被引：16
|
作者：
CURCURUTO, O
TRALDI, P
MONETI, G
CORDA, L
PODDA, G
机构：
[1] CTR SPETTROMETRIA MASSA,IST FARMACOL,I-50100 FLORENCE,ITALY
[2] IST CHIM FARMACEUT & TOSSICOL,I-09100 CAGLIARI,ITALY
来源：
ORGANIC MASS SPECTROMETRY | 1991年 / 26卷 / 08期
关键词：
D O I：
10.1002/oms.1210260809
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The fast atom bombardment mass spectrometry of some crown ethers shows the formation of both [M + H]+ and [M - H]+ ions, paralleling behaviour already observed using electron impact ionization. The study of these oily samples with and without a glycerol matrix, trifluoroacetic acid or alkali metal salts, suggests that the ionization process does not occur in the condensed phase, but in the selvedge region by gas-phase ion-molecule reactions in accordance with the 'gas-phase explosion model'. Positive-ion chemical ionization experiments support this proposal.
引用
收藏
页码：713 / 717
页数：5
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