Solid phase extraction medium

Details Solid phase extraction medium Solid phase extraction medium

1992-08-14

1994-01-18

Spear, Frank

Liquid purification or separation

Processes

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

2105021, 210505, B01D 1504

Patent

active

052797422

ABSTRACT:
A method for isolating an environmentally hazardous organic contaminant from a fluid utilizes a solid phase extraction medium comprises a PTFE fibril matrix, and sorptive particles enmeshed in said matrix comprising more than 30 and up to 100 weight percent of porous organic particles, and less than 70 to 0 weight percent of porous (organic-coated or uncoated) inorganic particles, the ratio of sorptive particles to PTFE being in the range of 40:1 to 1:4 by weight. The extraction medium is useful in pesticide, phenolics, and residue of explosives separations. The separations can be efficiently performed in a stacked disk format.

REFERENCES:
patent: 4153661 (1979-05-01), Ree et al.
patent: 4208194 (1980-06-01), Nelson
patent: 4373519 (1983-02-01), Errede et al.
patent: 4460642 (1984-07-01), Errede et al.
patent: 4512897 (1985-04-01), Crowder, III et al.
patent: 4565663 (1986-01-01), Errede et al.
patent: 4722898 (1988-02-01), Errede et al.
patent: 4810381 (1989-03-01), Hagen et al.
patent: 4871671 (1989-10-01), Errede et al.
patent: 4906378 (1990-03-01), Hagen et al.
patent: 4935142 (1990-06-01), Sternberg
patent: 4971697 (1990-11-01), Douden et al.
patent: 4971736 (1990-11-01), Hagen et al.
patent: 5009869 (1991-04-01), Weinberg
patent: 5019232 (1991-05-01), Wilson et al.
Hagen et al., Analytical Chimica Acta, 236 (1990) pp. 157-164.
Design News, Feb. 9, 1987, Cahners Publishing Company.
L. A. Errede, Journal of Applied Polymer Science, 31 (1986) pp. 1749-1761.
L. A. Errede, et al., Chemically Modified Surfaces in Science and Industry, 2, Proceedings of the Chemically Modified Surfaces Symposium, Fort Collins, Colo. (1987), pp. 91-104, Gordon and Breach Science Publishers, N.Y.

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