Chromatographic column terminator assembly

Details Chromatographic column terminator assembly Chromatographic column terminator assembly

1981-06-12

1984-09-04

Adee, John

Liquid purification or separation

With means to add treating material

Chromatography

55386, B01D 1508

Patent

active

044695977

ABSTRACT:
A chromatographic column is terminated with a fitting for connecting the column to an end flow tube. The fitting is provided with a column terminator element comprising a solid rim-like housing having a central aperture therein and a duplex porous disc positioned within the aperture and secured to the housing. The porous disc comprises a main body portion providing pores having a first relatively higher micron rating and a thin layer on one surface providing pores having a relatively lower micron rating and a higher pressure drop thereacross. The thin layer is adapted to face toward the chromatographic column and the main body portion has a coarse pimpled surface opposite the planar surface to facilitate lateral fluid flow relative to the main body portion.

REFERENCES:
patent: 2723756 (1955-11-01), Miller et al.
patent: 3201858 (1965-08-01), Valyi
patent: 3310932 (1967-03-01), Melrolber
patent: 3728061 (1973-04-01), Mott
patent: 4026803 (1977-05-01), Abrahams

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