Organic contaminant separator

Patent · Tue Dec 28 00:00:00 EST 1993

OSTI ID:5233375

Del Mar, P

A process is presented 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. The solvent is capable of separating the adhered organic contaminant from the composite tube. Further, an extraction apparatus is presented for sample preparation prior to analysis for the concentration of an organic contaminant in an aqueous medium. The apparatus includes a composite tube comprised of a blend of a polyolefin and a polyester. The composite tube has an internal diameter of from about 0.1 to about 2.0 millimeters and has sufficient length to permit an organic contaminant contained within an aqueous medium passed therethrough to adhere to the composite tube. 2 figures.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5273655; A
• Application Number: PPN: US 7-912431
• OSTI ID: 5233375
• Resource Relation: Patent File Date: 13 Jul 1992
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ORGANIC COMPOUNDS
SEPARATION PROCESSES
SEPARATION EQUIPMENT
DESIGN
DECONTAMINATION
TECHNOLOGY ASSESSMENT
CLEANING
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
400105 - Separation Procedures