Chemistry: analytical and immunological testing – Automated chemical analysis – With a continuously flowing sample or carrier stream
Patent
1991-08-15
1993-10-12
Johnston, Jill A.
Chemistry: analytical and immunological testing
Automated chemical analysis
With a continuously flowing sample or carrier stream
436103, 436155, 436164, G01N 3122, G01N 3500
Patent
active
052524868
ABSTRACT:
A method for flow injection analysis of total inorganic phosphate contained in an aqueous system such 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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O'Lear Christina
Salamony Keith J.
Calgon Corporation
Caruso Charles M.
Johnston Jill A.
Speer Raymond M.
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