Title:
【発明の名称】フローフイールドフローフラクシヨネーシヨンのための方法及び装置
Document Type and Number:
Japanese Patent JPH02504677
Kind Code:
A
Abstract:
An apparatus for flow field flow (FFF) fractionation comprises: a porous hollow fiber (1) which extends longitudinally between end-fittings (2, 3) of a tube (4), one end of said fiber (1) being connected to a first pump (5) for pumping a first carrier liquid into said fiber (1) via a valve (9) for introducing a liquid sample to be fractionated, the other end of said fiber (1) being connected to a container for a second carrier liquid via a flow-through detector (11), for detecting fractions of said sample; a second pump (12) which is connected to the interspace between the tube (4) and the fiber (1) to pump out carrier fluid through the porous fiber wall; and a control unit (6) which is adapted to control said first pump (5) to have a flower flow rate than said second pump (12) during injection and relaxation of the sample, and a higher flow rate than said second pump (12) to elute the sample; and a method for FFF fractionation in a hollow fiber utilizing the steps of sample application, relaxation, flow restoration, and elution whereby the radial flow out of the fiber is controlled by a separate pump.
Inventors:
Lee Young-son, Yang Oke
Karls Half, Alf
Karls Half, Alf
Application Number:
JP50622489A
Publication Date:
December 27, 1990
Filing Date:
June 05, 1989
Export Citation:
Assignee:
Pharmacia Actie Borrag
International Classes:
B01D43/00; B01D63/02; B01J20/281; B03B5/00; G01N30/00; G01N30/88; (IPC1-7): B01D63/02; G01N30/02
Attorney, Agent or Firm:
Chika Takagi (2 outside)