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(17) Pellizzari, E. D.; Bunch, J. E. “Ambient Air Carcinogenic Vapors: Improved Sampling and Analysis Techniques and Field Studies”; U. S. Environmental Protection Agency, EPA-60012-79-081,May 1979. (18) Pellizzari, E. D.; Bunch, J. E.; Berkley, R. E.; McRae, J. Anal. Lett. 1976, 9 , 45. (19) Pellizzari, E. D. “Measurement of Carcinogenic Vapors in Ambient Atmospheres”; U. S. Environmental Protection Agency, EPA-60017-78-062,April 1978. (20) Pellizzari, E. D.; Erickson, M. D.; Zweidinger, R. A. “Formulation of a Preliminary Assessment of Halogenated Organic Compounds in Man and Environmental Media”; U. S. Environmental Protection Agency, EPA-560/ 13-79006, July 1979. (21) “Eight Peak Index of Mass Spectra”; Mass Spectrometry Data Centre, AWRE, Aldermaston, Reading, Great Britain, RG74PR Vol. I (Tables 1 and 2), Vol. I1 (Table 3). (22) Stenhagen, E., Ed. “Registry of Mass Spectral Data”;Wiley: New York, 1974; Vol. 4. Received for review March 29, 1982. Accepted June 28,1982. Although the research described in this article has been funded wholly or in part by the U.S. Environmental Protection Agency through Contract No. 68-02-1228,68-02-2864,68-02-2262, and 68-01 -4731 to the Research Triangle Institute, it has not been subjected to the Agency’s required peer and administrative review and, therefore, does not necessarily reflect the views of the Agency, and no official endorsement should be inferred.
Factors Affecting the Amperometric Determination of Trace Quantities of Total Residual Chlorine in Seawater George T. F. Wong
Department of Oceanography, Old Dominion University, Norfolk, Virginia 23508 The standard scheme for the determination of total residual chlorine in seawater by amperometric titration is not suitable for many recent studies that require lower and lower detection limits (XO.1 mg L-l or
