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Title: Ozone oxidation of organic sequestering agents in water prior to the determination of trace metals by anodic stripping voltammetry

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac50023a028· OSTI ID:5347251

Ozone is investigated as a general oxidant for trace organic sequestering agents in water. The course of destruction of sequestering agents is monitored by observing the liberation of free-ion Pb and Cd at the part-per-billion level. The model compounds used for developing the presented method are: EDTA, APDC, tannic, and humic acids. The method is applied to the determination of Pb and Cd in sewage effluent and in San Francisco Bay water. A method by which humic acid having an initial ash content of greater than 11 percent is reduced to less than 0.1 percent is discussed.

Research Organization:
Univ. of California, Berkeley
OSTI ID:
5347251
Journal Information:
Anal. Chem.; (United States), Vol. 50:1
Country of Publication:
United States
Language:
English