Process for detecting a plateable metal in an aqueous fluid

Details Process for detecting a plateable metal in an aqueous fluid Process for detecting a plateable metal in an aqueous fluid

1988-08-16

1989-05-09

Kaplan, G. L.

Chemistry: analytical and immunological testing

Metal or metal containing

Cu, ag, au

204 1T, 436 73, 436 81, 436 83, G01N 3318

Patent

active

048290076

ABSTRACT:
A process is provided for detecting trace amounts of a plateable metal in an aqueous fluid such as drinking water or industrial effluents. The process comprises an initial concentration step in an electrochemical plating cell whereby the metal in the fluid is deposited upon a glassy carbon plating electrode which is thereafter deplated in a second electrochemical cell wherein a porous solid test matrix impregnated with electrolyte is maintained proximate to the deplating electrode for retaining in solution the resulting metal ions formed from the deplated metal. A color indicator is then added to the test matrix to provide an indication of the presence of said metal.

REFERENCES:
Graeme E. Batley et al., Anal. Chem., vol. 49, No. 13, pp. 2031-2035, (1977).
P. E. Doherty et al., Anal. Chem., vol. 43, No. 13, pp. 1887-1888, (1971).
J. Kinard et al., Anal. Chem., vol. 46, No. 8, pp. 1106-1109, (1974).

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