用快原子轰击质谱法测定海洋动物中神经酰胺氨基乙基膦酸酯和神经酰胺N-甲基氨基乙基膦酸酯的存在情况。
Determination of the presence of ceramide aminoethylphosphonate and ceramide N-methylaminoethylphosphonate in marine animals by fast atom bombardment mass spectrometry.
作者信息
Matsubara T, Morita M, Hayashi A
机构信息
Department of Chemistry, Faculty of Science and Technology, Kinki University, Osaka, Japan.
出版信息
Biochim Biophys Acta. 1990 Feb 23;1042(3):280-6. doi: 10.1016/0005-2760(90)90154-p.
Phosphonosphingolipids from 15 kinds of shellfish were analyzed by fast atom bombardment mass spectrometry to determine the contents of ceramide aminoethylphosphonate (CAEPn) and ceramide N-methylaminoethylphosphonate (CMAEPn). Two pairs of ions, at m/z 126 and 140 in the positive ion mode and at m/z 124 and 138 in the negative ion mode, were used to distinguish between aminoethylphosphonic acid and N-methylaminoethylphosphonic acid in CAEPn and CMAEPn. Interestingly, mollusca in the early stage of evolution have both CAEPn and CMAEPn, while most in the middle stage have only CMAEPn and those in the highest stage have only CAEPn.
采用快原子轰击质谱法分析了15种贝类中的膦osphingolipids，以确定神经酰胺氨基乙基膦酸（CAEPn）和神经酰胺N-甲基氨基乙基膦酸（CMAEPn）的含量。在正离子模式下，m/z 126和140处的两对离子以及在负离子模式下m/z 124和138处的两对离子用于区分CAEPn和CMAEPn中的氨基乙基膦酸和N-甲基氨基乙基膦酸。有趣的是，进化早期的软体动物同时含有CAEPn和CMAEPn，而中期的大多数只含有CMAEPn，最高阶段的则只含有CAEPn。
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