Organic contaminant separator

Patent · Tue Aug 06 04:00:00 EDT 1991

OSTI ID:5534473

Del Mar, P; Hemberger, B J

This patent describes a process of sample preparation prior to analysis for the concentration of an organic contaminant in an aqueous medium by passing an initial aqueous medium including a minor amount of the organic contaminant through a polyolefin tube having an internal diameter of from about 0.01 to about 2.0 millimeters and being of sufficient length to permit the organic contaminant to adhere to the tube, passing a solvent through the tube, the solvent capable of separating the adhered organic contaminant from the tube. Further, a chromatographic apparatus for sample preparation prior to analysis for the concentration of an organic contaminant in an aqueous medium, the apparatus including a polyolefin tube having an internal diameter of from about 0.01 to about 2.0 millimeters and being of sufficient length to permit an organic contaminant contained within an aqueous medium passed there-through to adhere to the tube is disclosed.

• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5037553; A
• Application Number: PPN: US 7-418613
• OSTI ID: 5534473
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AQUEOUS SOLUTIONS
AROMATICS
CHROMATOGRAPHY
CONTROL
DISPERSIONS
ENVIRONMENT
EXTRACTION
HYDROCARBONS
LAND POLLUTION CONTROL
MEMBRANES
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC WASTES
POLLUTANTS
POLLUTION CONTROL
POLYCYCLIC AROMATIC HYDROCARBONS
POLYMERS
POLYOLEFINS
SAFETY
SAMPLE PREPARATION
SEPARATION PROCESSES
SOILS
SOLUTIONS
SOLVENT EXTRACTION
WASTES
WATER POLLUTION CONTROL
WATER TREATMENT PLANTS