Electromagnetic metering pump for chromatograph column

Details Electromagnetic metering pump for chromatograph column Electromagnetic metering pump for chromatograph column

G - Physics

01

N

182/1, 73/93, 13

G01N 30/36 (2006.01) B01D 15/08 (2006.01) G01N 30/32 (2006.01)

Patent

CA 1037287

ABSTRACT Apparatus for pumping the eluent liquid through a chromatograph column is provided in the form of an electromagnetic metering pump, the outlet of which is provided with a pulsation damping device in the form of a sealed chamber having a resiliently ?oaded elastic wall. Considerable control of operation is obtainable by adjustment of the resilient loading and the oper- ation of the pump (speed and stroke length). The chamber may be fitted with a pressure guage having a closable outlet to atmosphere for purging purposes. Effective chromatographic separation of mixtures is obtainable at low equip- ment costs.

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