Direct matrix-assisted laser desorption/ionization quadrupole ion trap mass spectrometry of pesticides adsorbed on solid-phase extraction membranes

被引：8

作者：

Bristow, AWT ^{[1
]}

Creaser, CS ^{[1
]}

Nelieu, S ^{[1
]}

Einhorn, J ^{[1
]}

机构：

[1] INRA,UNITE PHYTOPHARM & MEDIATEURS CHIM,F-78026 VERSAILLES,FRANCE

来源：

ANALYST | 1996年 / 121卷 / 10期

关键词：

pesticide; solid-phase extraction membrane; matrix-assisted laser desorption/ionization; quadrupole ion trap mass spectrometry;

D O I：

10.1039/an9962101425

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The direct determination of pesticides adsorbed on solid-phase extraction (SPE) membranes by matrix-assisted laser desorption/ionization (MALDI) combined with quadrupole ion trap mass spectrometry is reported. Ionization was carried out in an external source followed by injection of desorbed ions into the trap using an ion lens, Ion accumulation from multiple desorption events and tandem mass spectrometric procedures were used to enhance the sensitivity and selectivity of the analysis. The potential of the method for quantitative analysis is discussed.

引用

页码：1425 / 1428

页数：4

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