Apparatus for injection analysis of total inorganic phosphate

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample

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422 81, 422 8209, 422 62, 422 67, 7386341, 7386481, 356 36, 356442, G01N 2108, G01N 3508

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052406814

ABSTRACT:
A method for flow injection analysis of total inorganic phosphate contained in an aqueous system such as a cooling tower or boiler is described which uses a reducing agent and preservative composition therefore as the carrier for the sample to be analyzed, thereby creating a facile process which permits conversion of the various polyphosphates to orthophosphate and development of the molybdenum blue complex color reaction at 60.degree.-95.degree. C. and under 2-10 psi. This method has less stringent pressure and temperature requirements than those employed heretofore, thus permitting the use of more reliable and economic devices for measuring total inorganic phosphate in the field.

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