title: Fragmentation pathways of O-trimethylsilyl ethers of dihydroxy long-chain bases analysed by linked-scan mass spectrometry.
abstract: The fragmentation pathways of O-trimethylsilyl (TMS) ethers of long-chain bases were studied by the linked-scan technique and exact mass measurements of the characteristic ion of O-trimethylsilyl long-chain bases detected by gas chromatography combined with electron-impact mass spectrometry. The results indicate that there are three pathways: the M+ - 15 (CH3) - 90 (TMSOH) - 74 [OSi(CH3)2] series, the M+ - 103 (CH2OTMS) - 90 (TMSOH) series and the M+ - 132 (CHNH2CH2OTMS) series.
authors.affiliation: Department of Chemistry, Faculty of Science and Technology, Kinki University, Higashi-Osaka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Matsubara
authors.forename: A
authors.initials: A
authors.lastname: Hayashi
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D013058:Mass Spectrometry; D013107:Sphingolipids / Q000737:chemistry*; D014297:Trimethylsilyl Compounds / Q000737:chemistry*
chemical_list: D013107:Sphingolipids; D014297:Trimethylsilyl Compounds