Print Email Facebook Twitter Electrophoretic mobility of latex nanospheres in electrolytes: Experimental challenges Title Electrophoretic mobility of latex nanospheres in electrolytes: Experimental challenges Author Chassagne, C. Ibanez Sanz, M.E. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2012-08-07 Abstract The electrophoretic mobility of sulfate latex nanospheres (radius 300 ± 10 nm) was measured as a function of ionic strength for different salts. The results were obtained from two similar instruments (Malvern ZetaSizer 3000 HSa and Malvern ZetaSizer Nano) using the same dispersions, in the same conditions. The values predicted from the standard electro - kinetic model for constant surface charge were in good agreement with the data over a large range of ionic strength. The influence of the protocol used to fill the cells appears to be of importance between 1–10 mM of added monovalent salt. There, the capillary wall properties seem to influence the electrophoretic measurements, even at fast field reversal (FFR), where electroosmosis should be absent. We found that during a series of measurements with monovalent salts, it was best to fill the cell starting from high ionic strength and decreasing the ionic strength during the series. The measurements with divalent salts were not sensitive to the filling procedure. Subject colloidal dispersionselectrokineticselectrophoresislatex nanosphereszeta potential To reference this document use: http://resolver.tudelft.nl/uuid:cb93d40a-1c98-4082-8ed7-676af0d1182e DOI https://doi.org/10.1351/PAC-CON-12-02-12 Publisher International Union of Pure and Applied Chemistry (IUPAC) ISSN 0033-4545 Source Pure and Applied Chemistry, 85 (1), 2013 Part of collection Institutional Repository Document type journal article Rights © 2012 IUPAC Files PDF 302268.pdf 560.28 KB Close viewer /islandora/object/uuid:cb93d40a-1c98-4082-8ed7-676af0d1182e/datastream/OBJ/view