Citation:

Reckhow, D., C. Hull, E. Lehan, J. Symons, H. Kim, Y. Chang, L. Simms, R. Dressman, AND H. Pourmoghaddas. THE DETERMINATION OF TOTAL ORGANIC HALIDE IN WATER: A COMPARATIVE STUDY OF TWO INSTRUMENTS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-90/497 (NTIS PB91196360), 1990.

Description:

Total organic halide (TOX) analyzers are commonly used to measure the amount of dissolved halogenated organic byproducts in disinfected waters. ecause of the lack of information on the identity of disinfection byproducts, rigorous testing of the dissolved organic halide (DOX) procedure for method bias is not always possible. his note presents the results of a brief study comparing two commercial TOX analyzers with neutron activation. he purpose was to determine if differential bias exists between the two analyzers, and to determine analyte recovery of adsorbed disinfection byproducts. isinfection byproducts of aquatic fulvic acid were prepare using the following disinfectants: hlorine, bromine, and monochloramine. nalysis of these samples indicated that the two commercial TOX analyzers gave similar results. eutron activation analysis suggested that organic chlorine recover from the activated carbon adsorbent was complete, however, results with organic bromine recovery were inconclusive. dditional tests indicated that one of the TOX analyzers is subject to significant interferences from inorganic iodide.

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