Column for preparative liquid chromatography

Details Column for preparative liquid chromatography Column for preparative liquid chromatography

1987-08-19

1988-06-21

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

55386, B01D 1508

Patent

active

047523913

ABSTRACT:
A column for preparative liquid chomatography is provided with an inlet tube (5) for injected sample, which is closed on the end with a gauze or fritted plate (6), passes through the center of a lower terminal (3), and ends in the distance equal to 70 to 90% of the total length of the column from the lower end of this tube, whereas the lower terminal (3) has at least four openings (7) or a circular slot or two half-slots which are placed outside the center of terminal on a concentric circle with diameter ranging between 40 to 70% of the inner diameter of column tube (1). The column operates in such a way, that mobile phase is introduced into the column through the center of the upper terminal (2) and a sample is injected into a sorbent through the inlet tube (5) for sample after stopping the flow of mobile phase and then the flow of mobile phase is restored.

REFERENCES:
patent: 3346486 (1967-10-01), Winter
patent: 3474908 (1969-10-01), Catravas
patent: 4453954 (1984-06-01), Kolb
patent: 4563276 (1986-01-01), Clark
patent: 4636315 (1987-01-01), Allen

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