Photosensitizing Dye: Its Voltammetric Behavior and Determination in Cosmetics

CNU IR > Pharmacy and Science > Dept. of Food & Drug Industry and Inspective Technology > Periodical Articles > Item 310902800/29580

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Title:	Photosensitizing Dye: Its Voltammetric Behavior and Determination in Cosmetics
Authors:	Wang, Lai-Hao Chen, Shih-Ting
Contributors:	醫藥化學系
Keywords:	Nanoparticle metal oxide-modified carbon-paste electrodes electrochemical impedance spectroscopy photosensitizing dye cosmetics
Date:	2015
Issue Date:	2016-04-19 19:00:57 (UTC+8)
Publisher:	Bentham Science Publ Ltd
Abstract:	We developed a method that uses electrochemical impedance spectroscopy (EIS) to choose an electrode to determine photosensitizing dye No. 201 (quaternium-73), a thiazolium derivative, in cosmetics. The method is based on nanoparticle metal oxide (tin, cerium, cobalt, iron, and nickel)-modified carbon paste electrodes. Using differential pulse voltammetry (DPV), we found that the electrocatalytic property of tin oxide was better than that of the other metal oxides tested. When the proposed method was used to determine photosensitizing dye No. 201 in commercial cosmetics, the results were were comparable to those obtained using high-performance liquid chromatography with ultraviolet detection.
Relation:	Current Analytical Chemistry, v.11 n.1, pp.22-28
Appears in Collections:	[Dept. of Food & Drug Industry and Inspective Technology] Periodical Articles

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