Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1990-12-21
1992-07-21
Dawson, Robert A.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
210 94, 210 961, 250565, 356434, 422 62, 436 56, 436 73, G01N 2178, G01N 3122
Patent
active
051320967
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.
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Brochure from Analog Devices, Inc. titled "1988 Linear Products Handbook", pp. 7-15 to 7-17, published 1988.
Banks Rodney H.
Hoots John E.
Dawson Robert A.
Drodge Joseph
Nalco Chemical Company
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