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Automated phosphate analysis in the presence of arsenic
Author(s) -
Goulden P. D.,
Brooksbank Peter
Publication year - 1974
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1974.19.4.0705
Subject(s) - arsenate , arsenite , arsenic , molybdenum blue , phosphate , thiosulfate , reagent , chemistry , environmental chemistry , molybdenum , inorganic chemistry , sulfur , biochemistry , organic chemistry
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.