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INVESTIGATION OF DISINFECTION BY-PRODUCTS IN DRINKING WATER USING SOLID-PHASE EXTRACTION AND GAS CHROMATOGRAPHY/MASS SPECTROMETRY
Citation:
Pastor, S. J., S. W. Krasner, H. Weinberg, AND S D. Richardson. INVESTIGATION OF DISINFECTION BY-PRODUCTS IN DRINKING WATER USING SOLID-PHASE EXTRACTION AND GAS CHROMATOGRAPHY/MASS SPECTROMETRY. Presented at 48th American Society for Mass Spectrometry Conference, Long Beach, CA, June 11-15, 2000.
Impact/Purpose:
(1) Use toxicity-based approach to identify DBPs that show the greatest toxic response. (2) Comprehensively identify DBPs formed by different disinfectant regimes for the 'Four Lab Study'. (3) Determine the mechanisms of formation for potentially hazardous bromonitromethane DBPs.
Description:
Disinfection by-products (DBPs) result from the interaction of natural organic matter and bromide with chemical disinfectants, such as chlorine, added to drinking water to inactivate disease-producing microorganisms. These DBPs are monitored and regulated because of their possible adverse health effects. Historically, DBP monitoring focused on the volatile and
non-polar DBPs. Because extraction of polar compounds from a polar water matrix is a non-trivial task, new analytical methods are being developed that aid in identifying new DBPs that have yet to be discovered in drinking water.