Ion analysis method and apparatus

Details Ion analysis method and apparatus Ion analysis method and apparatus

1982-09-30

1984-10-02

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Chromatography

2101982, 436150, G01N 3104

Patent

active

044746644

ABSTRACT:
A permselective ion-exchange membrane, preferably comprising hollow fiber(s) immersed within a regenerant, is used to selectively neutralize or suppress the conductivity of electrolyte in a stream of eluent also containing chromatographically separated ions. The invention particularly specifies a chromatographic separating column useful with an electrolyte eluent solution to separate ionic species by elution chromatography, wherein the effluent of the separator column is treated by the described membrane to suppress the conductivity of the electrolyte but not that of the separated ions.

REFERENCES:
patent: 3228876 (1966-01-01), Mahon
patent: 3463615 (1969-08-01), Sochor
patent: 3751879 (1973-08-01), Allington
patent: 4187333 (1980-02-01), Rembaum et al.
Small et al., "Ion Chromatography", 1976, pp. 32-1 to 32-10.
Deelder et al., "Post-Column Reactor Systems in Liquid Chromatography", pp. 669-682, J. of Chromatography, 149 (1978).
Amicon Bulletin CECl On-Line Column Eluate Concentrator, Bulletin I-118G, 6-75.

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