Characterization of O-trimethylsilyl oximes of trisaccharides by gas chromatography-mass spectrometry

被引:22
作者
Brokl, Michal [1 ]
Cristina Soria, Ana [2 ]
Martinez-Castro, Isabel [1 ]
Luz Sanz, Maria [1 ]
Isabel Ruiz-Matute, Ana [1 ]
机构
[1] CSIC, Inst Quim Organ Gen, E-28006 Madrid, Spain
[2] CSIC, Inst Fermentac Ind, E-28006 Madrid, Spain
关键词
Gas chromatography-mass spectrometry; Trimethylsilyl oximes; Trisaccharides; DISACCHARIDES; DERIVATIVES; OLIGOSACCHARIDES; IDENTIFICATION; LACTULOSE; ETHERS; HONEY;
D O I
10.1016/j.chroma.2009.03.069
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Gas chromatography (CC) data (linear retention indices and relative areas) and mass spectra (most representative m/z fragments) of 12 reducing trisaccharides as trimethylsilyl oximes (TMSO) and four non-reducing as trimethylsilyl (TMS) ethers have been described for the first time and related to their structural features. Some trends have been observed: earlier elution of non-reducing compounds and fructotrioses; aldotrioses hearing the reducing end with link in position 6 showing the highest retention. Abundance of several fragment tons and their ratios were useful for trisaccharide characterization; some of these features seem to be useful for the characterization of new trisaccharides. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:4689 / 4692
页数:4
相关论文
共 21 条