Process and apparatus for the quantitative determination of cati

Details Process and apparatus for the quantitative determination of cati Process and apparatus for the quantitative determination of cati

1982-06-29

1984-07-10

Turk, Arnold

Chemistry: analytical and immunological testing

Including chromatography

204180P, 210656, 422 70, G01N 3108

Patent

active

044593570

ABSTRACT:
A procedure and an apparatus for the quantitative determination of cations and anions by ion chromatography is described which can be used, for example, to test drinking water, river water or water in drains. The sample is injected into a buffer stream which comes through a chromatography column. The eluate from the column is measured in a conductivity detector, the background being suppressed in a new cell. The cell consists of two ion exchange membranes which are not permeable to the ions to be measured and two electrodes which set up an electric field across the membranes. The highly dissociated ions of opposite charge in the eluate are exchanged into compounds of low conductivity and removed from the cell.

REFERENCES:
patent: 2794777 (1957-06-01), Pearson
patent: 2921005 (1960-01-01), Bodamer
patent: 3244620 (1966-04-01), Hansen et al.
patent: 3925019 (1975-12-01), Small et al.
patent: 4149957 (1979-04-01), Gibson et al.
patent: 4272246 (1981-06-01), Fritz et al.

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