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Speciation and Preservation of Inorganic Arsenic in Drinking Water Supplies With Ic-ICP-MS

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Abstract:The speciation of inorganic arsenic in drinking water supplies is an essential part of devising an appropriate treatment process. Arsenate, because of its anion characteristics at drinking water pHs, is effectively removed by anion exchange treatment while arsenite remains in the treated drinking water. One of the issues in this analysis pertains to the preservation of the native As(III)/As(V) distribution during the transport of the sample to the laboratory. Some of the potential problems are due to changes in dissolved oxygen and waters containing elevated concentrations of iron. This poster will evaluate preservation techniques designed to curcumvent the redox changes which occur during shipment.
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Citation:Schwegel, C. A., P. A. Gallagher, X. Wei, and J. T. Creed. Speciation and Preservation of Inorganic Arsenic in Drinking Water Supplies With Ic-ICP-MS. Presented at 2000 Winter Conference on Plasma Spectrochemistry, Ft. Lauderdale, FL, January 10-15, 2000.
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Contact: Mary P. O'Bryant - (919)-541-4871 or obriant.mary@epa.gov
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Division: Microbiological & Chemical Exposure Assessment Division
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Branch: Chemical Exposure Research Branch
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Product Type: Abstrct/Oral
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Presented: 01/11/2000
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Related Entries:
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Bullet Item In-Field Preservation of Arsenic Species in Drinking Water Using Edta
spacer Relationship Reason:   A Project of the Product
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Last Updated on Monday, October 22, 2007
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