Liquid purification or separation – Processes – Chromatography
Patent
1979-12-10
1981-04-21
Adee, John
Liquid purification or separation
Processes
Chromatography
2101982, 422 70, 55 97, 55417, B01D 1508
Patent
active
042631440
ABSTRACT:
A device and method are described for collecting and transferring particulate material. The device includes a housing with a porous member and means for connecting the housing to a vacuum attached thereto. A plunger, slidably mounted in the housing, opens and closes fluid-flow communication between the vacuum source and the porous member. In operation the porous member with a vacuum applied to one side thereof is contacted with first a porous filamentary filter and then with the particulate material. The particulate material detachably adheres to the filter and can be transferred to a collection area. The device and method of the invention are specifically suited for collecting and transferring adsorbent chromatographic fractions.
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patent: 1945820 (1934-02-01), Mitchell
patent: 2300765 (1942-11-01), Barnhart
patent: 2532614 (1950-12-01), Evans
patent: 2564174 (1951-08-01), Roman
patent: 3237640 (1966-03-01), Whitlock et al.
patent: 4029487 (1977-06-01), Brandt
Simple Push-Pull Glass Valves by Platt et al., Journal of Chemical Education, p. 609, vol. 55, Sep. 1978.
Direct Transfer of Thin-Layer Chromatography into Vials by Preiss, Analytical Chemistry, vol. 49, No. 4, Apr. 1977, pp. 671 and 672.
Simple Device for Transferring and Eluting Thin-Layer Chromatographic Fractions by Sudilovsky et al., Analytical Biochemistry 45, 525-529, (1972).
Adaptation of Swinney Filter Holders for the Collection and Elution of Samples from Thin-Layer Plates by Nagle et al., J. Chromatog. 42 (1969), 121-123.
Technic for Separation and Solution of Zones in Thin-Layer Chromatography by Spikner et al., Chemist-Analyst, vol. 52, 1963, p. 50.
A Simple Device for Recovering Samples After Thin-Layer Chromatography by Levitt, Chromatography 4, 1971, pp. 75 and 76.
Preparative Thin-Layer Chromatography as an Alternative for Column Chromatography by Ritter et al., Nature, vol. 193, Mar. 10, 1962, pp. 941 and 942.
Chromatographic Identification of Complex Mixtures of High-Boiling Compounds by Janak, Nature, vol. 195, Aug. 18, 1962.
Adee John
Leitereg Theodore J.
McConnell David G.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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