Liquid purification or separation – Processes – Chromatography
Patent
1983-02-25
1984-09-11
Adee, John
Liquid purification or separation
Processes
Chromatography
2101982, 422 70, B01D 1508
Patent
active
044709102
ABSTRACT:
A liquid-phase preparative chromatographic apparatus comprising a column in the form of a cylindrical tube equipped at its lower section with a cap; a filling device to be connected by means of a compression nozzle and comprising a cylinder for actuating a non-porous solid body that compresses the stationary phase with which the column is filled by means of the compression nozzle; an injection head to be fastened onto the column after it is filled and comprising a lower wall and an injection unit having a diameter smaller than the injection head and equipped with several lateral solute supply ports, the head comprising on its upper surface a central solvent supply port and means enabling the solvent to flow around the injection unit; a pump connected to the injection head and comprising four pistons activated by cams or rods disposed at 90.degree. angles from one another and having a base of support that is not integral with the block; a detection device consisting of a double detection assemblage; and a fraction collector connected to the detection means and comprising two superimposed compartments.
REFERENCES:
patent: 3954617 (1976-05-01), Ishimatsu
patent: 3963614 (1976-06-01), Osawa
patent: 3966609 (1976-06-01), Godbille et al.
patent: 4174772 (1979-11-01), Neuss et al.
patent: 4311586 (1982-01-01), Baldwin et al.
patent: 4350595 (1982-09-01), Gunkel
Introduction to Modern Liquid Chromatography by Snyder et al., John Wiley & Sons, pp. 137-139 and 147-149, 1979.
High Performance Liquid Chromatography by Knox., Edinburgh Press of Scotland, p. 185, 1978.
Porho Catherine
Quemerais Claude
Adee John
Instruments S. A.
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