Liquid purification or separation – With means to add treating material – Chromatography
Patent
1993-11-23
1995-02-14
Therkorn, Ernest G.
Liquid purification or separation
With means to add treating material
Chromatography
2105021, B01D 1508
Patent
active
053892518
ABSTRACT:
A process of sample preparation prior to analysis for the concentration of an organic contaminant in an aqueous medium by (a) passing an initial aqueous medium including a minor amount of the organic contaminant through a composite tube comprised of a blend of a polyolefin and a polyester, the composite tube having an internal diameter of from about 0.1 to about 2.0 millimeters and being of sufficient length to permit the organic contaminant to adhere to the composite tube, (b) passing a solvent through the composite tube, said solvent capable of separating the adhered organic contaminant from the composite tube.
Further, an extraction apparatus for sample preparation prior to analysis for the concentration of an organic contaminant in an aqueous medium, said apparatus including a composite tube comprised of a blend of a polyolefin and a polyester, the composite tube having an internal diameter of from about 0.1 to about 2.0 millimeters and being of sufficient length to permit an organic contaminant contained within an aqueous medium passed therethrough to adhere to the composite tube is disclosed.
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Cottrell Bruce H.
Eklund William A.
The Regents of the University of California
Therkorn Ernest G.
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