Analysis system for determining copper content in waste water

Details Analysis system for determining copper content in waste water Analysis system for determining copper content in waste water

1982-02-04

1985-10-08

Bernstein, Hiram H.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

G01N 2125

Patent

active

045459576

ABSTRACT:
An analysis system for determining total copper content in waste-water, as from a galvanizing system, comprises periodically taking samples from such waste-water, acidifying such samples with a metalliferous acid containing a metal which forms a strong cyanogen complex and which exhibits a larger electro-negative potential than copper, such as Pd, reducing cupric ions to cuprous ions, adjusting the pH of the resulting sample solution, adding a copper color-forming reagent, such as bathocuprione disulfonic acid salt, and determining the color content by colorimetry. In order to determine a reagent value, a prepared waste-water sample can be subjected to colorimetry before and after addition of the color-forming reagent.

REFERENCES:
patent: 2950396 (1960-08-01), Schneider
patent: 3030192 (1962-04-01), Schneider
patent: 3227523 (1966-01-01), Hoefker et al.
patent: 4326940 (1982-04-01), Eckles et al.
patent: 4391775 (1983-07-01), Huber et al.

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