A New Method for the Fast Analysis of Trihalomethanes in Tap and Recycled Waters Using Headspace Gas Chromatography with Micro-Electron Capture Detection

International Journal of Environmental Research and Public Health
Lydon D AlexandrouOliver A H Jones

Abstract

Chemical disinfection of water supplies brings significant public health benefits by reducing microbial contamination. The process can however, result in the formation of toxic compounds through interactions between disinfectants and organic material in the source water. These new compounds are termed disinfection by-products (DBPs). The most common are the trihalomethanes (THMs) such as trichloromethane (chloroform), dichlorobromomethane, chlorodibromomethane and tribromomethane (bromoform); these are commonly reported as a single value for total trihalomethanes (TTHMs). Analysis of DBPs is commonly performed via time- and solvent-intensive sample preparation techniques such as liquid-liquid and solid phase extraction. In this study, a method using headspace gas chromatography with micro-electron capture detection was developed and applied for the analysis of THMs in drinking and recycled waters from across Melbourne (Victoria, Australia). The method allowed almost complete removal of the sample preparation step whilst maintaining trace level detection limits (>1 ppb). All drinking water samples had TTHM concentrations below the Australian regulatory limit of 250 µg/L but some were above the U.S. EPA limit of 60 µg/L. The high...Continue Reading

References

Feb 22, 2003·Journal of Exposure Analysis and Environmental Epidemiology·Heather WhitakerPaul Elliot
Apr 11, 2007·Journal of Chromatography. a·A Serrano, M Gallego
Oct 23, 2008·Analytica Chimica Acta·José Luis Pérez PavónBernardo Moreno Cordero
Aug 22, 2009·Toxicology Mechanisms and Methods·Grażyna Wejnerowska, Jerzy Gaca
Sep 10, 2014·Environmental Science & Technology·Kimberly M ParkerWilliam A Mitch
Jan 28, 2015·The Science of the Total Environment·Lydon D AlexandrouOliver A H Jones

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Citations

Feb 12, 2019·Bulletin of Environmental Contamination and Toxicology·Fatemeh HajilariHabibollah Eskandari
Sep 6, 2020·Environmental Pollution·Arun Lal SrivastavVinod Kumar Chaudhary

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