Monitoring performance of a treating agent added to a body of wa

Details Monitoring performance of a treating agent added to a body of wa Monitoring performance of a treating agent added to a body of wa

1990-03-23

1991-04-09

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

422 3, 436 56, 210745, G01N 2100, G01N 3100, G01N 3300

Patent

active

050063111

ABSTRACT:
Analyzing the level of a treating agent and/or stress metals in a body of water containing an inert transition metal tracer added to the water proportionally with the treating agent by determining the absorbance (first absorbance value) of a reagent dye added to water, said dye producing a second absorbance value when reacted at the same concentration with the tracer and stress metals in a measure of said body of water, and said dye producing a third absorbance value when reacted at the same concentration with only the transition metal contained in a measure of said body of water; determining the second and third absorbance values and resolving their differences to determine the concentration of the tracer and, separately, the concentration of said stress metals.

REFERENCES:
patent: 3605775 (1971-12-01), Zaander et al.
patent: 4217544 (1980-12-01), Schmidt
patent: 4478941 (1984-10-01), Hillshafer
patent: 4659676 (1987-04-01), Rhyne, Jr.
patent: 4783314 (1988-11-01), Hoots et al.
patent: 4820647 (1989-04-01), Gibbons

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