Chemistry: analytical and immunological testing – Measurement of electrical or magnetic property or thermal... – Of a liquid
Patent
1985-02-15
1986-04-22
Richman, Barry S.
Chemistry: analytical and immunological testing
Measurement of electrical or magnetic property or thermal...
Of a liquid
73 611C, 210649, 210656, 422 70, 436161, 436175, 436178, G01N 3014, G01N 3096, B01D 1300
Patent
active
045842760
ABSTRACT:
Method and apparatus for analysis, by ion chromatography, of anions, in a sample solution, wherein accurate analysis of anions in the sample solution is obtained by passing carbonic acid, through a prescribed membrane, into the sample solution, thereby completely eliminating or sharply lessening the so-called water dip effect. The method and apparatus are further directed to enabling anions in the sample solution to be accurately analyzed by passing prescribed cations, through a prescribed membrane, into the sample solution, thereby depriving the sample solution of interfering anions otherwise abundantly present therein.
REFERENCES:
patent: 3926559 (1975-12-01), Stevens
patent: 4314823 (1982-02-01), Rich et al.
patent: 4403039 (1983-09-01), Ban et al.
Hanaoka Yuzuru
Matsuura Tamizo
Muramoto Setsuo
Murayama Takeshi
Hill Jr. Robert J.
Kojima Moonray
Richman Barry S.
Yokogawa Hokushin Electric Corporation
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