First application of carbon-based screen-printed electrodes for the voltammetric determination of the organic UV filters oxybenzone and octocrylene

A new voltammetric methodology is proposed for the simultaneous determination of the organic UV filters oxybenzone (benzophenone 3, BP3) and octocrylene (OC) in personal care products and in wastewater extracts. It is based on previous adsorptive stripping voltammetric (AdSV) methods developed for h...

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Bibliographic Details
Published in:Talanta (Oxford) 2019-05, Vol.196, p.381-388
Main Authors: Sunyer, Adrià, González-Navarro, Ainoa, Serra-Roig, M. Pau, Serrano, Núria, Díaz-Cruz, M. Silvia, Díaz-Cruz, José Manuel
Format: Article
Language:English
Subjects:
Anàlisi electroquímica
Bellesa personal
Electrochemical analysis
LC-MS/MS
Octocrylene (OC)
Oxybenzone (BP3)
Personal beauty
Personal care products
Screen-printed electrodes
Stripping voltammetry
Voltametria
Voltammetry
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Summary:A new voltammetric methodology is proposed for the simultaneous determination of the organic UV filters oxybenzone (benzophenone 3, BP3) and octocrylene (OC) in personal care products and in wastewater extracts. It is based on previous adsorptive stripping voltammetric (AdSV) methods developed for hanging mercury drop electrodes, adapted to the special characteristics of carbon-based screen-printed electrodes. Among the carbon substrates tested, regular carbon screen-printed devices exhibited the best performance, with detection limits of 4.8 and 6.6 μmol L−1 and linearity ranges of 16–400 and 22–400 μmol L−1 for BP3 and OC, respectively, and, as compared to mercury electrodes, with the advantages of environmental safety, easy of use, low cost and compatibility with automation and flow measurements. The methodology has been successfully tested in real samples and compared to the standard methodology by liquid chromatography – tandem mass spectrometry (LC-MS/MS). [Display omitted] •A new voltammetric method is proposed for the determination of the UV filters oxybenzone and octocrylene.•The method is based on adsorptive stripping voltammetry at commercial screen-printed electrodes.•The proposed method exhibits detection limits in the order of μmol L−1 and a good reproductibility.•The method has been successfully applied to the determination of oxybenzone and octocrylene in personal care products and extracts of natural waters.
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2018.12.092