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GAS CHROMATOGRAPHY/MASS SPECTROMETRY STUDY OF MIXED HALOACETIC ACIDS FOUND IN CHLORINATED DRINKING WATER
Citation:
Ireland, J., L. Moore, H. Pourmoghaddas, AND A. Stevens. GAS CHROMATOGRAPHY/MASS SPECTROMETRY STUDY OF MIXED HALOACETIC ACIDS FOUND IN CHLORINATED DRINKING WATER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-88/569 (NTIS PB91196162).
Description:
Over the last two years, our laboratory and others have identified mono-, di-, and trichloro- acetic acids as major byproducts of drinking water disinfection. n areas of the country where relatively high levels of bromine ion are naturally present in the source water, it is expected that significant amounts of the corresponding bromo and mixed chloro-bromo acetic acids will be formed. hile developing an automated Cc/MS procedure to "screen" for both previously identified disinfection byproducts as well as the haloacetic acids it was discovered that reference mass spectra for 4 of the 9 possible chloro/bromo acetic acids (as their methyl esters) were unavailable. his paper presents experimental reference spectra for the methyl esters of the four acids mentioned above. ll nine acids were synthesized in-situ by reacting an aqueous solution of phenol with chlorine in the presence of various amounts of bromide ion.