At the moment of the aliquot touched the electrode surface, it spread all over. Any suggestions?

A 50 microL drop  of 0.1M H2SO4 was placed on the screen printed electrodes (DRP110) and ten cyclic voltammograms from 0 to +1.25V were recorded, using a scan rate of 100 mV/s. Then the electrodes...

03 March 2016 470 4 View