Negative-mode MALDI mass spectrometry for the analysis of pigments using tetrathiafulvalene as a matrix

被引：7

作者：

Asakawa, Daiki ^{[1
]}

Chen, Lee Chuin ^{[1
]}

Hiraoka, Kenzo ^{[1
]}

机构：

[1] Yamanashi Univ, Clean Energy Res Ctr, Kofu, Yamanashi 4008511, Japan

来源：

JOURNAL OF MASS SPECTROMETRY | 2008年 / 43卷 / 11期

关键词：

negative mode; MALDI-MS; pigments; tetrathiafulvalene; electron donating compound; fragmentation;

D O I：

10.1002/jms.1425

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Negative-mode matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS) analysis of industrial pigments was performed using tetrathiafulvalene (TTF), an electron donating compound, as a matrix. Comparing with other matrices such as tetracyanoquinodimethane (TCNQ), dithranol, 2-hydroxy-6-nitroaniline (HNA), and harmine hydrochloride, the most abundant analyte ions were produced by the TTF as radical or deprotonated anions. In addition, fragment ions in the negative mode of operation are also found to be much less abundant than those in the positive mode of operation. Copyright (C) 2008 John Wiley & Sons, Ltd.

引用

页码：1494 / 1501

页数：8

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