Peter D. Goulden, Peter Brooksbank
Abstract
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An automated method is described for eliminating arsenate interference in the determination of phosphate in natural waters by the molybdenum blue method. The arsenate is reduced to arsenite by thiosulfate in an acidic medium before the color‐producing reagents are added.
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An automated method is described for eliminating arsenate interference in the determination of phosphate in natural waters by the molybdenum blue method. The arsenate is reduced to arsenite by thiosulfate in an acidic medium before the color‐producing reagents are added.
Key concepts: Arsenate, Arsenite, Arsenic, Molybdenum blue, Phosphate, Thiosulfate, Reagent, Chemistry