Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
Talanta. 2019 May 1;196:381-388. doi: 10.1016/j.talanta.2018.12.092. Epub 2018 Dec 27.
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 and linearity ranges of 16-400 and 22-400 μmol L 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).
提出了一种新的伏安测定方法，用于同时测定个人护理产品和废水提取物中的有机紫外线滤光剂氧苯酮（苯并酮 3，BP3）和奥克立林（OC）。它基于先前为悬汞滴电极开发的吸附溶出伏安法（AdSV），适用于基于碳的丝网印刷电极的特殊特性。在所测试的碳基底中，常规碳丝网印刷器件表现出最佳性能，BP3 和 OC 的检测限分别为 4.8 和 6.6 μmol/L，线性范围分别为 16-400 和 22-400 μmol/L，与汞电极相比，具有环境安全性、易用性、低成本以及与自动化和流动测量的兼容性等优点。该方法已成功应用于实际样品，并与液相色谱-串联质谱法（LC-MS/MS）的标准方法进行了比较。
