負イオンMALDI‐MSによる中性糖鎖解析  I:ポストソース分解とインソース分解による結合異性体の解析

書誌事項

タイトル別名
  • Study of Negative-Ion MALDI-MS of Neutral Oligosaccharides: I: Linkage Isomers' Analyses by Postsource and In-Source Decay Measurements
  • 負イオンMALDI-MSによる中性糖鎖解析(1)ポストソース分解とインソース分解による結合異性体の解析
  • フイオン MALDI MS ニ ヨル チュウセイ トウサ カイセキ 1 ポストソース ブンカイ ト インソース ブンカイ ニ ヨル ケツゴウ イセイタイ ノ カイセキ

この論文をさがす

抄録

Negative ions from neutral oligosaccharides were analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The deprotonated molecule [M−H]- were decomposed in negative-ion MALDI using nor-harmane as a matrix, indicated that the in-source decay took place at the laser irradiation. The chloride ion adducts [M+Cl]- were stable enough to be detected by reflectron-mode, and postsource decay (PSD) spectra were measured from those ions. The PSD ions were detected as the deprotonated ion form rather than the chlorinated one, indicated that the deprotonated molecules were very labile and a reaction intermediate in the PSD. The in-source decay ions depended on the linkage types of oligosaccharides and their spectra could be useful to identify the linkage types. The PSD spectra were also useful.

収録刊行物

  • 質量分析

    質量分析 54 (4), 141-149, 2006

    一般社団法人 日本質量分析学会

被引用文献 (1)*注記

もっと見る

参考文献 (32)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ