2-(4-HYDROXYPHENYLAZO)-BENZOIC ACID - A SOLID-MATRIX FOR MATRIX-ASSISTED LASER-DESORPTION IONIZATION OF POLYSTYRENE

被引：75

作者：

MONTAUDO, G ^{[1
]}

MONTAUDO, MS ^{[1
]}

PUGLISI, C ^{[1
]}

SAMPERI, F ^{[1
]}

机构：

[1] CNR,IST CHIM & TECNOL MAT POLIMERICI,I-95125 CATANIA,ITALY

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1994年 / 8卷 / 12期

关键词：

D O I：

10.1002/rcm.1290081221

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Liquid matrices are currently used in matrix assisted laser desorption ionization (MALDI) of non-polar macromolecules, such as polystyrene. We investigated the possibility of using non-liquid compounds as matrices. A series of polystyrene samples was analyzed by MALDI using a time-of-flight (TOF) analyzer. We found that a solid matrix, namely 2-(4-hydroxyphenylazo)-benzoic acid, yields quality mass spectra. The MALDI-TOF spectra were used to measure the parameters which characterize the molecular weight distributions of the polystyrene samples. The values obtained by MALDI-TOF were in good agreement with those obtained by other methods.

引用

页码：1011 / 1015

页数：5

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