ENHANCEMENT OF METHYLATION ANALYSIS OF COMPLEX CARBOHYDRATES USING PYRIDINE AS REAGENT IN CHEMICAL-IONIZATION MASS-SPECTROMETRY

被引：14

作者：

PATOPRSTY, V

KOVACIK, V

KARACSONYI, S

机构：

[1] Institute of Chemistry, Slovak Academy of Sciences, Bratislava, 842 38

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1995年 / 9卷 / 09期

关键词：

D O I：

10.1002/rcm.1290090924

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Under the conditions of chemical ionization (CI) mass spectrometry, protonated pyridine [PyrH](+) and partially methylated alditol acetates (PMAAs) form very stable adducts. The CI mass spectra exhibit, exclusively, peaks due to quasimolecular [M+PyrH](+) adduct ions. The methylation analysis of complex carbohydrates can be enhanced by using the pyridine CI mass spectra to complement electron impact mass spectra and gas chromatography data. As a result, the sensitivity as well as the accuracy of quantitative analysis of PMMA components is increased.

引用

页码：840 / 844

页数：5

共 22 条

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[2]

CHIZHOV OS, 1976, JORG CHEM, V41, P425

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