ソフトイオン化質量分析によるリン脂質の構造解析

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タイトル別名
  • Structural Elucidation of Phospholipids by Soft-ionization Mass Spectrometry
  • ソフト イオンカ シツリョウ ブンセキ ニ ヨル リン シシツ ノ コウゾウ

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抄録

Advances in structure elucidation of glycero-and sphingo-phospholipids including phosphonolipids by soft ionization mass spectrometry for the past eight years are reviewed. This method enables identification of phospholipid class (polar head group), molecular weight, and molecular species of the hydrophobic moiety that includes total carbon number, number and position of double bond, and positional isomer (sn-1 or sn-2) of constituent fatty acids. As soft-ionization technique, ionization by fast atom bombardment (FAB), electrospray (ES) or matrix assisted laser desorption (MALD) are described on its principle, method and information obtained from its yielded molecular ions, fragment ions and product ions that are produced from MS/MS of precursor ion. The mass spectrometer referred are magnetic sector, quadrupole, time-of-flight and Fourier-transform ion cyclotron resonance types. Diacyl and ether-linked species were differentiated by the presence of only one carboxylate ion in the ether-linked species.

収録刊行物

  • 日本油化学会誌

    日本油化学会誌 47 (10), 983-996,1144, 1998

    公益社団法人 日本油化学会

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