Summary
The electrophoretic mobilities for the micelles of sodium dodecyl sulfate and sodium dodecyltrioxyethylene sulfate in the presence of various electrolytes were measured by paper electrophoresis and compared with the mobilities obtained from Tiselius- type electrophoresis. There is a good correlation between the mobility from paper electrophoresis (U P ) and that from Tiselius electrophores is (U T ), and a factor in conversion from U P to U T was found to be 0.60. The value is not affected by the type of electrolytes present and the ionic strength of solutions. In addition, the paper electrophoretic behavior of the micelles of sodium dodecyl sulfate in the aqueous solutions of a series of sodium polyphosphates was also investigated.
Zusammenfassung
In der vorliegenden Arbeit wird die Bestimmung der elektrophoretischen Beweglichkeit von Mizellen durch Papier-Elektrophorese mit der Bestimmung in einer Tiselius-Apparatur verglichen. Die mit Hilfe der Papier-Electrophorese ermittelten Beweglichkeiten sind um einen konstanten Faktor kleiner als die Werte in der Tiselius-Apparatur. Der Faktor 0.60 ist unabhängig von dem Elektrolyt-Typ und der Ionenstärke in der Lösung. Die Beweglichkeiten können über Papier-Elektrophorese auch dann gemessen werden, wenn Bestimmungen in der Tiselius-Apparatur nicht möglich sind, z. B. bei Natriumdodecylsulfat in Lösungen von Natriumpolyphosphaten.
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Tokiwa, F., Ohki, K. Paper electrophoretic properties of surfactants in aqueous systems. Kolloid-Z.u.Z.Polymere 230, 251–254 (1969). https://doi.org/10.1007/BF01521988
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DOI: https://doi.org/10.1007/BF01521988