Composite membranes for solid phase extractions and reactions

Details Composite membranes for solid phase extractions and reactions Composite membranes for solid phase extractions and reactions

1997-03-05

1998-04-14

Therkorn, Ernest G.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210656, 210658, B01D 1508

Patent

active

057387907

ABSTRACT:
A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.

REFERENCES:
patent: 4153661 (1979-05-01), Ree et al.
patent: 4344775 (1982-08-01), Klein
patent: 4648977 (1987-03-01), Garg et al.
patent: 4650575 (1987-03-01), White
patent: 4664812 (1987-05-01), Klein
patent: 4740219 (1988-04-01), Kulprathipanja et al.
patent: 4744374 (1988-05-01), Deffeves
patent: 4810381 (1989-03-01), Hagen et al.
patent: 4826497 (1989-05-01), Marcus et al.
patent: 4828698 (1989-05-01), Jewell
patent: 4855154 (1989-08-01), Gioffre et al.
patent: 4906378 (1990-03-01), Hagen et al.
patent: 4933229 (1990-06-01), Insley
patent: 4971736 (1990-11-01), Hagen et al.
patent: 5013335 (1991-05-01), Marcus
patent: 5071565 (1991-12-01), Fritz et al.
patent: 5071610 (1991-12-01), Hagen et al.
patent: 5100596 (1992-03-01), Haag et al.
patent: 5108597 (1992-04-01), Funkenbusch
patent: 5147539 (1992-09-01), Hagen et al.
patent: 5207915 (1993-05-01), Hagen et al.
patent: 5279742 (1994-01-01), Markell et al.
patent: 5328758 (1994-07-01), Markell et al.
patent: 5417678 (1995-05-01), Baumann et al.
patent: 5468536 (1995-11-01), Whitcomb et al.
patent: 5529686 (1996-06-01), Hagen et al.
patent: 5639372 (1997-06-01), Hagen
Chriswell & D.T. Gjerde, Anal. Chem., 1982, 54, 1911-1913.
Chriswell et al., Use of Silicalite Molecular Sieve for Gas Chromatographic Determination of Permanent Gases and Volatile Hydrocarbons Emitted During Coal Processing, J. Chromatogr., 1987, 405, 213-221.
Colella et al., "Lead Removal from Waste Waters Using Chabizite Tuff", Perspectives in Molecular Sieve Science, Flank, W.H. and Whyte Jr., T.E., Eds. ACS Symposium Series, 386, Am. Chem. Soc., Washington, DC 1988 pp. 500-510.
Errede, et al., "Chemical Modified Surfaces in Science and Industry", Gordon and Breach Science Publishers, New York, 1998, 91-104.
Flanigen et al., "Silicalite, a New Hydrophobic Crystalline Silica Molecular Sieve", Nature, 1978, 271, 512-516.
Hagen et al., "Membrane Approach to Solid Phase Extraction", Anal. Chim. Acta, 1990, 236, 157-164.
Markell et al., "New Technologies in Solid Phase Extraction," LC/GC 1991 9, No. 5, pp. 332-337.
Otto et al., "Adsorption of Hydrocarbons and Other Exhaust Components on Silicalite", Ind. Eng. Chem. Res., 1991, 30, 2333-2340.
Rostad, et al., "Bonded-Phase Extraction Column Isolation of Organic Compounds in Groundwater at a Hazardous Waste Site", Anal. Chem., 1984, 56, 2856-2860.
Schultz-Sibbel et al., Analytical Investigation of the Properties and uses of a New Hydrophobic Molecular Sieve, Talanta, 1982, 29, 447-452.
Database WPI Week 9213, Derwent Publications Ltd., London, GB; AN 92-101976 & JP,A,04045829 (abstract) (14 Feb. 1992).
Patent Abstracts of Japan, vol. 18, No. 371 (C-1224) & JP, A,06 099044 (Agency of Ind. Science & Technol.) (abstract) 12 Apr. 1994).

Affiliated with

Also associated with

Rating

Composite membranes for solid phase extractions and reactions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite membranes for solid phase extractions and reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite membranes for solid phase extractions and reactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-632254