A new method for the determination of emulsion stability by dielectric constant measurement: a preliminary report
- 1 December 1965
- journal article
- Published by Oxford University Press (OUP) in Journal of Pharmacy and Pharmacology
- Vol. 17 (Supplement) , 92S-97S
- https://doi.org/10.1111/j.2042-7158.1965.tb07753.x
Abstract
The creaming of emulsions of liquid paraffin in water stabilised by cetomacrogol 1000 has been studied in a specially designed capacitance cell. Before visual separation of the emulsion is detectable, changes in emulsion composition in the upper part of the cell result in a measurable decrease of dielectric constant. Differences in the creaming rates of a number of emulsions are easily detected and the rate of change of dielectric constant with time is dependent on globule size.Keywords
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