Electron ionization mass spectral fragmentation of deoxynivalenol and related tricothecenes

被引：14

作者：

Rodrigues-Fo, E

Mirocha, CJ

Xie, WP

Krick, TP

Martinelli, JA

机构：

[1] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Minnesota, Dept Plant Pathol, St Paul, MN 55108 USA

[3] Univ Minnesota, Mass Spectrometry Consortium Life Sci, St Paul, MN 55108 USA

[4] Univ Fed Rio Grande Sul, Dept Fitossanidade, Porto Alegre, RS, Brazil

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 2002年 / 16卷 / 19期

关键词：

D O I：

10.1002/rcm.796

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Careful analysis of the electron impact (0) mass spectral data obtained for the trimethylsilyl (TMS) ethers of known trichothecene mycotoxins of the deoxynivalenol group permitted the construction of a database useful for the identification of these mycotoxins directly from a gas chromatography/mass spectrometry (GC/MS) run. Structures of the ions at m/z 103, 117, 147 and 191 were elucidated by high-resolution mass spectrometry (HRMS) and a fragmentation scheme was suggested. The relative abundances of these ions in the mass spectra of the trichothecenes allowed a fast structural diagnosis during analysis of biological matrices. A new mycotoxin of this group, 3-acetylnivalenol, was tentatively identified by using MS data interpretation only. Copyright (C) 2002 John Wiley Sons, Ltd.

引用

页码：1827 / 1835

页数：9