Published:Journal of Chromatographic Science,
ISSN 0021-9665 Volume
47, Number 7, August 2009, pp. 505-509
Trace Level Haloacetic Acids in Drinking Water
by Direct Injection Ion Chromatography and Single Quadrupole
Mass Spectrometry
Johnson Mathew1, Rick McMillin1,
Jay Gandhi2,
Sheher Mohsin3, and Stefanie Czyborra4
1Houston Laboratory, Management Division, United States Environmental
Protection Agency, 10625 Fallstone, Houston, TX 77099;
2Metrohm-Peak LLC,
12521 Gulf Freeway, Houston TX 77034;
3Agilent Technologies, 10 N. Martingale
Road, Ste 550, Schaumburg, IL 60173;
4Metrohm Ltd., Oberdorfstrasse 68,
CH-9101 Herisau, Switzerland
Chlorine has been widely used to kill disease-causing
microbes in drinking water. During the disinfection process,
organic and inorganic material in source waters can combine with
chlorine and certain other chemical disinfectants to form disinfection
by-products. The kind of disinfectant used can produce different
types and levels of disinfectant byproducts in the drinking water,
such as trihalomethanes and haloacetic acids (5HAAs). Currently,
USEPA Method 552 utilizes a methyl tert-butyl ether extraction
and diazomethane derivatization of HAAs and phenolic disinfectant
by-products, and a gas chromatograph equipped with a capillary
column to perform the separation of methyl-haloacetates and anisoles.
To detect, gas chromatography and electron capture detector are
used. This article demonstrates a simple method using direct
injection ion chromatography hyphenated with mass spectrometry
for the analysis of 5HAAs.
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