Analyzing device including an ion-permeable channel connecting a

Details Analyzing device including an ion-permeable channel connecting a Analyzing device including an ion-permeable channel connecting a

1991-11-15

1996-03-05

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 58, 422 81, 422 8206, 422 8209, 422 86, 436113, 436122, 436129, 436163, G01N 2105, G01N 2147

Patent

active

054965217

ABSTRACT:
In a device for determining the concentration of a reagent from a group consisting of gases with acid or alkaline reaction in aqueous environments, and volatile acids and bases in liquid or gaseous samples, a sample chamber is situated in a housing and a unit for pH measurement with a reaction space is separated from the sample chamber by an ion-impermeable, gas-permeable membrane. The feeding of the reaction space with buffer solution is facilitated by connecting the reaction space by means of an ion-permeable channel to a reservoir for a buffer solution located outside of the pH measuring unit.

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M. E. Meyerhoff et al. Anal. Chim. Acta 1983, 154, 17-31.
J. F. Coetzee et al. Anal. Chem. 1986, 58, 650-653.

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