Process and apparatus for testing for substances in liquids

Chemistry: analytical and immunological testing – Metal or metal containing – Organometallic compound determined

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436 80, 436 81, 436164, 436175, 436177, 436 73, G01N 3320

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active

055676197

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.

REFERENCES:
patent: 3757779 (1973-09-01), Rovinski
patent: 3802843 (1974-04-01), Kim
patent: 4137917 (1979-02-01), Cohen
patent: 4453927 (1984-06-01), Sinko
patent: 4485014 (1984-11-01), Gilroy et al.
patent: 4820276 (1989-04-01), Moreno
patent: 4986921 (1991-01-01), Yates et al.
patent: 5039618 (1991-08-01), Stone
patent: 5064418 (1991-11-01), Cronin
patent: 5100621 (1992-03-01), Berke et al.
patent: 5277817 (1994-01-01), Martyak et al.
J. Sayre and D. Wilson, "A Spot Test for Detectin of Lead in Paint", Journal of Pediatrics, vol. 46, pp. 783-784 (1970).
James R. Preer and George B. Murchinson, Jr., "A Simplified Method of Lead Contamination of Soil"; Environmental Pollution, (Series B) vol. 12, pp. 1-13 (1986).
Ervin Jungreis and Magda Nechama, "A Simple Direct Estimation of Ultramicroquantities of Lead in Drinking Water Using Sodium Rhodizonate", Michrochemical Journal, vol. 34, pp. 219-221 (1986).
Thomas Tisue, Charles Seils and Thomas R. Keel, "Preconcentration of Submicrogram Amounts of Metals from Natural Waters For X-ray Energy Spectrometric Determintaion Using Pyrrolindinecarbodithioic Acid", Analytical Chemistry, vol. 57, No. 1, pp. 82-84, and 87 (1985).
J. M. Lo, J. C. Yu, F. I. Hutchinson and C. M. Wal, "Solvent Extraction of Dithiocarbamate Complexes and Back-Extraction with Mercury (II) for Determination of Trace Metals in Seawtaer by Atomic Absorption Spectrometry", Analytical Cheimstry, vol. 54, pp. 2536-2539 (1982).

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