Precise cutoff concentrator-dialyzer device

Details Precise cutoff concentrator-dialyzer device Precise cutoff concentrator-dialyzer device

1977-10-14

1979-03-20

Lander, Ferris H.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

210456, C02B 182

Patent

active

041452933

ABSTRACT:
A self-contained apparatus for concentrating and dialyzing protein and other macromolecular liquid samples rapidly to precise, predetermined microliter quantities. An elongate rod of predetermined volume, having irregular cross section along its length, is disposed within a semi-permeable membrane sample container in spaced juxtaposition with the membrane to maximize the rates of concentration and dialysis. The rod also cooperates with a sample collection chamber sealingly interconnected detachably with the bottom of the membrane to automatically provide a predetermined final sample volume precise to within two microliters. The rod includes a member, detachably coupled with and extending into the cllection chamber for providing the collection chamber with a predetermined volume.

REFERENCES:
patent: 3783127 (1974-01-01), Cook et al.
patent: 4033723 (1977-07-01), Givner et al.

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