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.
Keywords: Nanoparticle metal oxide-modified carbon-paste electrodes, electrochemical impedance spectroscopy, photosensitizing dye, cosmetics.
Current Analytical Chemistry
Title:Photosensitizing Dye: Its Voltammetric Behavior and Determination in Cosmetics
Volume: 11 Issue: 1
Author(s): Lai-Hao Wang and Shih-Ting Chen
Affiliation:
Keywords: Nanoparticle metal oxide-modified carbon-paste electrodes, electrochemical impedance spectroscopy, photosensitizing dye, cosmetics.
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.
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Cite this article as:
Wang Lai-Hao and Chen Shih-Ting, Photosensitizing Dye: Its Voltammetric Behavior and Determination in Cosmetics, Current Analytical Chemistry 2015; 11 (1) . https://dx.doi.org/10.2174/1573411010666141112214021
DOI https://dx.doi.org/10.2174/1573411010666141112214021 |
Print ISSN 1573-4110 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6727 |
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