Liquid purification or separation – With means to add treating material – Chromatography
Patent
1990-07-18
1992-02-18
Therkorn, Ernest G.
Liquid purification or separation
With means to add treating material
Chromatography
210101, 417 18, 417 20, 417 22, B01D 1508
Patent
active
050891243
ABSTRACT:
Precise gradient control is accomplished using a high flow three-way valve, appropriate mixing, and precise metering control. Gradient elution profiles are generated for flow rates above 100 ml/min. Control involves precise selection of two solvents, and correction factors for valve lag times and pump/valve synchronizations. The gradient is controlled simultaneously with other non-timed operations through a single microprocessor controller.
REFERENCES:
patent: 4437812 (1984-03-01), Abu-Shumays
patent: 4595495 (1986-06-01), Yotam
patent: 4595496 (1986-06-01), Carson
patent: 4879029 (1989-11-01), Whitehead
patent: 4902414 (1990-02-01), James
patent: 4919595 (1990-04-01), Likuski
Kettler Theodore
Levin Adam H.
Mahar Jeffrey T.
Ransohoff Thomas C.
Biotage Inc.
Parker Sheldon
Therkorn Ernest G.
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