Studies on trimethylsilyl derivatives of 1-alk-1-enyl-2-acyl glycerols by gas-liquid chromatography mass spectrometry
作者:Kiyoshi Satouchi、Kunihiko Saito
DOI:10.1002/bms.1200040210
日期:1977.4
Trimethylsilyl derivatives of 1-hexadec-1-enyl-2-decanoyl and -2-octadecenoylglycerols and 1-octadec-1-enyl-2-decanoyl and -2-octadecenoylglycerols were subjected to analysis by a gas chromatograph mass spectrometer system. The characteristic ions are as follows: (1) ions at [M-15]+ and [M-90]+- are observed, 2 or 16 mass units less than those of the corresponding 1-alkyl-2-acyl or 1,2-diacyl derivatives;
通过气相色谱质谱仪系统对1-十六烷基-1-烯基-2-癸酰基和-2-十八碳烯基甘油的三甲基甲硅烷基衍生物和1-十八烷基-1-烯基-2-癸酰基和-2-十八碳烯基甘油进行分析。特征离子如下:(1)观察到[M-15] +和[M-90] +-处的离子,比相应的1-烷基-2-酰基的离子少2或16个质量单位,或2-二酰基衍生物;(2)基本峰值为m / e 129;(3)高[M-R1CH = CHO] +或[R2COO + 130] +处的离子存在;(4)m / e 311和339处的离子(1-十六烷基-1-烯基和1-十八烷基-1-烯基甘油的三甲基甲硅烷基衍生物的特征)是由于[R1CH-CHO-1)+73] +引起的,来自对全氘三甲基甲硅烷基衍生物的研究;(5)还观察到基于一个酰基的几个离子[R2CO] +,[R2CO + 74] +和[R2COO + 74] +。