Automated sample concentrator for trace components

Details Automated sample concentrator for trace components Automated sample concentrator for trace components

1983-10-04

1985-02-19

Adee, John

Liquid purification or separation

Processes

Chromatography

55 67, 55386, 2101982, B01D 1508

Patent

active

045004323

ABSTRACT:
Concentration of the solutes contained in a liquid solvent is effected by passing the solvent through a first trapping means that adsorbs them, flushing the first trapping means with supercritical fluid and reducing its solubility parameter in a second trapping means so that the latter can adsorb desired solutes.

REFERENCES:
patent: 3996004 (1976-12-01), Fine et al.
patent: 4070284 (1978-01-01), Fujita et al.
patent: 4180389 (1979-12-01), Paul
patent: 4311586 (1982-01-01), Baldwin et al.
Apparatus for Supercritical Fluid Chromatography with Carbon Dioxide as the Mobile Phase by Jentoft and Gouw in Analytical Chemistry, vol. 44, No. 4, Apr. 1972, pp. 681-686.
Physicochemical Principles and Applications of Supercritical Fluid Chromatography in Angewandte Chemie Int. Ed. Engl., pp. 575-587, 1980.

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