Method and apparatus for pre-analyzing treatment for subsequent

Details Method and apparatus for pre-analyzing treatment for subsequent Method and apparatus for pre-analyzing treatment for subsequent

1997-08-18

2000-02-29

Ludlow, Jan

Chemistry: analytical and immunological testing

Including sample preparation

Liberation or purification of sample or separation of...

204522, 204529, 204532, 436 73, 436150, 436161, G01N 128, G01N 134

Patent

active

060308443

ABSTRACT:
Method of pre-treating a sample for metal analysis, the sample including a volatile alkali, by permeating the volatile alkali through a gas permeable membrane, dissolving the volatile alkali in an absorbent, passing ions through a first cation exchange membrane in electrical contact with an anode, reacting the volatile alkali with the ions, and passing the reacted volatile alkali through a second cation exchange membrane in electrical contact with a cathode, whereby the volatile alkali is removed from the sample.

REFERENCES:
patent: 4459357 (1984-07-01), Jansen et al.
patent: 4969983 (1990-11-01), Parsi
patent: 4999098 (1991-03-01), Pohl et al.
patent: 5518622 (1996-05-01), Stillian et al.

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