Satouchi K, Saito K
Biomed Mass Spectrom. 1977 Apr;4(2):107-12. doi: 10.1002/bms.1200040210.
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; (2) the base peak is m/e 129; (3) the ion at [M-R1CH=CHO]+ or [R2COO+130]+ is present in high abundance; (4) ions at m/e 311 and 339, characteristic of trimethylsilyl derivatives of 1-hexadec-1-enyl and 1-octadec-1-enylglycerols, are due to [R1CH-CHO-1)+73]+, also confirmed from studies on the perdeuteriotrimethylsilyl derivatives; (5) several ions based on one acyl group, [R2CO]+, [R2CO+74]+ and [R2COO+74]+ are also observed.
对1-十六碳-1-烯基-2-癸酰基甘油、1-十六碳-1-烯基-2-十八碳烯酰基甘油、1-十八碳-1-烯基-2-癸酰基甘油和1-十八碳-1-烯基-2-十八碳烯酰基甘油的三甲基硅烷基衍生物进行气相色谱-质谱联用系统分析。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-酰基或1,2-二酰基衍生物的离子少2或16个质量单位；(2) 基峰为m/e 129；(3) [M-R1CH=CHO]+或[R2COO+130]+处的离子丰度很高；(4) m/e 311和339处的离子是1-十六碳-1-烯基甘油和1-十八碳-1-烯基甘油的三甲基硅烷基衍生物的特征离子，归因于[R1CH-CHO-1)+73]+，对全氘代三甲基硅烷基衍生物的研究也证实了这一点；(5) 还观察到几个基于一个酰基的离子，[R2CO]+、[R2CO+74]+和[R2COO+74]+。
