I easily found (including here at Research Gate) an original article on a standard reference material for zeta potential, in buffered aqueous medium: the NIST SRM 1980.
I remember using (many years ago) a reference material with dodecane as liquid media and carbon black (I think) as nanoparticles, to calibrate an ESA (Electrokinetic Sonic Amplitude) electroacoustic effect instrument, working with nonaqueous mode. Does anyone know any recipe for the preparation of a calibration standard of electrophoretic mobility in liquids with dielectric constant ~ 2, as is the case with dodecane, or cyclohexane? Thanks!
Such a standard would be very difficult to create. The electrophoretic mobility of charged particles in low dielectric media can be very sensitive to trace amounts of water, including any water adsorbed on the cuvette, electrodes etc. It can also be readily affected by other impurities such as leachables from plastics etc.
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