Organic contaminant separator

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869273

Mar, Peter D ^[1]

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1. Los Alamos, NM

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 including a polymeric base material selected from the group of polyolefins and polyfluorocarbons and particles of a carbon allotrope material adfixed to the inner wall of the polymeric base material, 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 including a polymeric base material selected from the group of polyolefins and polyfluorocarbons and particles of a carbon allotrope material adfixed to the inner wall of the polymeric base material, 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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5308493
• OSTI ID: 869273
• Country of Publication: United States
• Language: English

Related Subjects

organic
contaminant
separator
process
sample
preparation
prior
analysis
concentration
aqueous
medium
passing
initial
including
minor
amount
composite
tube
polymeric
base
material
selected
polyolefins
polyfluorocarbons
particles
carbon
allotrope
adfixed
inner
wall
internal
diameter
millimeters
sufficient
length
permit
adhere
solvent
capable
separating
adhered
extraction
apparatus
contained
passed
therethrough
disclosed
solvent capable
passed therethrough
medium passed
adhered organic
extraction apparatus
sufficient length
sample preparation
internal diameter
tube including
medium including
organic contaminant
inner wall
aqueous medium
composite tube
base material
material selected
apparatus including
minor amount
carbon allotrope
base mat
preparation prior
contaminant contained
initial aqueous
contaminant separator
/210/436/