HIGH-RESOLUTION MASS-SPECTROMETRY METHOD FOR THE ANALYSIS OF 3-CHLORO-4-(DICHLOROMETHYL)-5-HYDROXY-2(5H)-FURANONE IN WATERS

被引：17

作者：

CHARLES, MJ

CHEN, G

KANNIGANTL, R

MARBURY, GD

机构：

[1] Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, North Carolina

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1992年 / 26卷 / 05期

关键词：

D O I：

10.1021/es00029a024

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method was developed for the analysis of 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) in drinking waters that is based on electron-ionization high-resolution mass spectrometry and selected-ion monitoring of the m/z 199 and 201 ions of the methyl derivative of MX and the use of isotopically labeled benzoic acid as the internal standard. High-resolution mass spectrometry is needed to provide sensitivity, selectivity, and confidence in the identification of MX in water extracts. In the analysis of matrix spikes and replicate samples, the method provided recoveries of 102-108% and a precision of 8% RSD. Extrapolation of a signal:noise ratio that was measured on a chlorinated water sample provides a detection limit of 0.6 ng/L at a S:N of 3:1, thereby enabling the detection of pptr levels of MX in waters.

引用

页码：1030 / 1035

页数：6

共 12 条

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