Flash chromatography

Details Flash chromatography Flash chromatography

1979-07-05

1981-10-06

Adee, John

Liquid purification or separation

Processes

Chromatography

55 67, B01B 1508

Patent

active

042934222

ABSTRACT:
A short vertical column is utilized to confine a short bed of adsorbent horizontally which has vertically defined upper and lower ends. Space in the column is provided to define a zone for horizontally defined liquid above and in contact with the bed. Liquid solvent is then placed in the column above bed to wet the bed, and positive gas pressure is applied to the liquid above the bed to drive entraped gases out of the bed. The solvent level is then lowered to the upper level of the bed. The sample is then added and gas pressure is used to drive the solvent and sample into the bed. The bed is eluted with fresh solvent in the same manner.

REFERENCES:
Rapaid Chromatographic Technique for Preparative Separations with Modern Resolution by Still, Kahn and Mitra, a reprint from the Journal of Organic Chemistry, 43, 2923 (2978).

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