Process and apparatus for testing for substances in liquids

Details Process and apparatus for testing for substances in liquids Process and apparatus for testing for substances in liquids

1997-01-09

1999-06-15

Hutzell, Paula K.

Chemistry: analytical and immunological testing

Metal or metal containing

Organometallic compound determined

436 76, 436 73, 436 80, 436 81, 436 84, 436164, 436174, 436175, 436177, 436178, H01L 21302, H01L 21304, H01L 21306, H01L 2176

Patent

active

059121807

ABSTRACT:
A method for detecting a substance in a liquid sample involves precipitating a substance from the liquid sample and filtering it from the liquid sample. The precipitate is then tested for the substance of interest by contacting the precipitate with a dye that forms a visible reaction when exposed to the substance. A releasing agent may be used after filtering the precipitate and prior to testing the precipitate with a dye. In another embodiment, the sample is filtered without the prior use of a precipitating agent.

REFERENCES:
patent: 4790960 (1988-12-01), Heckmann et al.
patent: 4986921 (1991-01-01), Yates et al.
patent: 5416028 (1995-05-01), Stone
Preer et al Environmental Pollution (Series B) 12 (1986) 1-13.
Tisue et al Analytical Chemistry (1985) 57 pp. 82-87.
Lejla et al Veterinaria (Sarajevo) 33(3) 1984 pp. 389-392 (Abstract only).

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