Voltammetric analysis of sun-block preparations containing octocrylene and its association with 2-Hydroxy-4-methoxybenzophenone and octyl methoxycinnamate

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• 作者：Valdir S. Ferreira^a ; Joã ; o B.G. Jú ; nior^a ; Cé ; lia Maria S.C. Oliveira^a ; Regina M. Takeuchi^b ; André ; L. Santos^b ; Magno A.G. Trindade^c ; ^{magnotr@gmail.com}
• 关键词：Sun-block preparations ; Sunscreen agents ; Octocrylene ; Voltammetric analysis
• 刊名：Microchemical Journal
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：106
• 期：Complete
• 页码：378-383
• 全文大小：358 K

文摘

In this work, an adsorptive cathodic stripping voltammetric method based on square wave voltammetry (SWV) was developed for determination of the sunscreen agent octocrylene (OCR) individually and simultaneously with 2-Hydroxy-4-methoxybenzophenone (BENZO-3) and octyl methoxycinnamate (OMC). All voltammetric experiments were conducted in a mixture 0.04 mol L^? 1 BR buffer: ethanol (80:20, v:v) using a hanging mercury drop electrode (HMDE) as working electrode. The proposed method could be successfully used to analyze commercial sun-block preparations containing OCR alone and combined with BENZO-3 and OMC. For all analyzed samples, the voltammetric method has allowed fast, simple and reliable determination of these sunscreen agents with minimal sample pre-treatment requirements.