Measuring the Surface Zeta Potential of Silica

The surface zeta potential cell is an accessory for the Zetasizer Nano used for the measurement of flat non-conductive surfaces. The document gives the results for silica, which are in very good agreement with literature values. S

urface zeta determination is illustrated at the example of a silica microscope slide surface, with schematic of electroosmosis and electrophoresis, The zeta varies between -60mV at pH9 to +20mV at pH3.

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