Apparatus for determination of microconstituents

Details Apparatus for determination of microconstituents Apparatus for determination of microconstituents

1985-04-10

1990-08-28

Hill, Jr., Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

73 611C, 2101982, 210656, 210659, 436150, 436161, 436178, G01N 3088

Patent

active

049521268

ABSTRACT:
A method and apparatus for determining, by use of ion chromatography, a microconstituent contained in a major constituent as impurities present in the major constituent. The invention causes only that portion of the effluent from the detector, shown on an ion chromatograph, that corresponds to the neighborhood of the microconstituent to be led again to the collecting valve. Thus, the microconstituent of the solution can be determined quickly and easily, without reference to the kind of microconstituent being tested.

REFERENCES:
patent: 4204952 (1980-05-01), Snyder
patent: 4274967 (1981-06-01), Snyder
patent: 4454043 (1984-06-01), Ting et al.
patent: 4533518 (1985-08-01), Hanaoka et al.
patent: 4536199 (1985-08-01), Toon
Snyder et al., "Introduction to Modern Liquid Chromatography", Second Edition, Published by John Wiley & Sons, Inc., New York, 1979, pp. 519-522.

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