2016 Volume 136 Issue 5 Pages 160-165
Stability of emulsion is an important index for quantitative assessment of cosmetics. In this study, we developed a portable sensor system equipped with a disposable type sensor chip which was made by a glass substrate with Cr electrode. Then we also determined the electric conductance of O/W emulsion of 5µL for 10s using the sensor system. On the basis of these results, we proposed the evaluation method of emulsified state for cosmetics.
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