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Comparison of the Microextraction Procedure and Method 552 for the Analysis of HAAs and Chlorophenols
Author(s) -
Barth Robert C.,
Fair Patricia Snyder
Publication year - 1992
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1992.tb05888.x
Subject(s) - haloacetic acids , derivatization , chromatography , diazomethane , extraction (chemistry) , chemistry , gas chromatography , reagent , detection limit , sample preparation , electron capture detector , solid phase microextraction , environmental chemistry , gas chromatography–mass spectrometry , high performance liquid chromatography , mass spectrometry , organic chemistry , chlorine
A comparison of the accuracy, precision, and detection limits of two methods for determining the concentrations of haloacetic acids and chlorophenols in drinking water is presented. Both methods consist of liquid–liquid extraction of the water sample with methyl‐tertiary‐butyl ether, diazomethane derivatization of the extracts, and analysis by gas chromatography (GC) with electron capture detection. Method 552, developed by the US Environmental Protection Agency, and a microextraction method, developed by the Metropolitan Water District of Southern California, gave comparable precision and method detection limits in fortified reagent water and the drinking‐water samples examined in this study. The microextraction method provided greater accuracy in routine applications because of the use of procedural standards for GC calibration. Because the microextraction method is also less labor‐intensive, it is preferred in most drinking‐water applications.