Chromatographic multi-sample valving apparatus

Details Chromatographic multi-sample valving apparatus Chromatographic multi-sample valving apparatus

1978-02-24

1979-06-19

Adee, John

Liquid purification or separation

With means to add treating material

Chromatography

55386, B01D 1508

Patent

active

041586301

ABSTRACT:
Apparatus for delivering different samples to a liquid chromatograph is disclosed. The valving apparatus includes a commutated valve having N loops, where N is a whole number integer. The loops are isolated from one another. Selected loops are cycled by rotation of an inlet and outlet connected to selected loops. The valving apparatus further includes a valve mechanism having multiple ports which connect with an inlet, a sample holding loop, a liquid chromatographic pump, a chromatographic column for separation of constituents of the sample and other functional connections to carry on chromatographic analysis.

REFERENCES:
patent: 3373872 (1968-03-01), Hrdina
patent: 3524305 (1970-08-01), Ives
patent: 3862038 (1975-01-01), Takeuchi et al.
patent: 4042499 (1977-08-01), Ramstar

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