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A fast way to make a monolithic column for a high pressure electroosmotic pump
Rong Wang1, Feifang Zhang, Bingcheng Yang
1East China University of Science and Technology, Shanghai 200237, PR China.
Abstract:
A simple way was proposed to make a monolithic column for a high pressure electroosmotic pump (EOP). It is in-situ synthesized inside the silica capillary from potassium silicate solution and no frit is required. Compared with common approaches to make columns for EOP, the present method is robust and fast (<4 h). For pure water, a stand-alone EOP operated at 15 kV applied voltage is capable of generating a flow rate of 3.1 microL/min and a maximum static pressure of approximately 5.4 MPa.
