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The effect of the channel height on the separation efficiency of an electrical field flow fractionation system

Abstract:

Iii this study, the effect of the channel height on the separation efficiency of Electrical Field Flow Fractionation (EFFF) systems was investigated. It has been shown for the fust time that if optimum channel height and experimental parameters are selected, baseline separations of nanoparticles (with sizes less than 100nm) can be achieved by Cyclical Electrical Field Flow Fractionation. EFF|F channels with four different channel heights were fabricated and separation experiments were made with 15 and 40nm gold nanoparticles. Specifically, baseline separation of 15 and 40μm gold nanoparticles were achieved by using the system with a channel height of 125um. We believe that by selecting the proper channel height and applying the appropriate voltage waveforms explained in this study. Cyclical Electrical Field Flow Fractionation will be a much more capable method for the fractionation of sub IOO11111 particles.