| Titre : |
Electroanalytical determination of the sunscreen agent octocrylene in cosmetic products |
| Type de document : |
texte imprimé |
| Auteurs : |
J. B. G. Jùnior, Auteur ; T. A. Araujo, Auteur ; M. A. G. Trindade, Auteur ; V. S. Ferreira, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 91-96 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse électrochimique
Octocrylène
Produits antisolaires
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
An electroanalytical method was developed to detect and quantify the sunscreen agent octocrylene (OCR) in cosmetic products. The method was based on electrochemical reduction, using voltammetric techniques. OCR was reduced at −0.97 V vs. Ag/AgCl on a glassy carbon electrode using a mixture of Britton–Robinson buffer (0.04 mol L−1) and ethanol (7 : 3, v/v) as the supporting electrolyte solution. Under optimized conditions and square-wave voltammetry, OCR response was linear from 5.0 × 10−6 to 8.0 × 10−5 mol L−1 (r = 0.9995), with a limit of detection of 2.8 × 10−6 mol L−1. The proposed electroanalytical method proved simple, fast and suitable for detection and quantification of OCR in samples of cosmetic products, with satisfactory results in the recovery test and analytical determination in real samples. |
| Note de contenu : |
- MATERIALS AND METHODS : Apparatus - Reagents and solutions - Sample preparation - Procedure for voltammetric measurement
- RESULTS AND DISCUSSION : Voltammetric behaviour - Effect of instrumental parameters - Effect of accumulation potential and accumulation time - Analytical application |
| DOI : |
10.1111/j.1468-2494.2011.00686.x |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/j.1468-2494.2011.00686.x |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13283 |
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 34, N° 1 (02/2012) . - p. 91-96
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