کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7609073 1493393 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of household and industrial chemicals, personal care products and hormones in leafy and root vegetables by liquid chromatography-tandem mass spectrometry
ترجمه فارسی عنوان
تعیین مواد شیمیایی خانگی و صنعتی، محصولات مراقبت شخصی و هورمون ها در سبزیجات برگ و ریشه با استفاده از کروماتوگرافی مایع و اسپکترومتری جرم دو طرفه
کلمات کلیدی
مواد شیمیایی خانگی و صنعتی، محصولات مراقبت شخصی، هورمون ها سبزیجات، استخراج فاز جامد فشرده، طیف سنجی جرمی کروماتوگرافی مایع دو طرفه،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A multiresidue method has been developed for the determination of emerging pollutants in leafy and root vegetables. Selected compounds were 6 perfluoroalkyl compounds (5 perfluorocarboxylic acids and perfluorooctanesulfonic acid), 3 non-ionic surfactants (nonylphenol and nonylphenolethoxylates), 8 anionic surfactants (4 alkylsulfates and 4 linear alkylbenzene sulfonates), 4 preservatives (parabens), 2 biocides (triclosan and triclocarban), 2 plasticizers (bisphenol A and di-(2-ethylhexyl)phthalate), 6 UV-filters (benzophenones) and 4 hormones. The method is based on ultrasound-assisted extraction, clean-up by dispersive solid-phase extraction (d-SPE) and liquid chromatography-tandem mass spectrometry analysis. Due to the diversity of the physico-chemical properties of the target compounds, and to better evaluate the influence of sample treatment variables in extraction efficiencies, Box-Behnken design was applied to optimize extraction solvent volume, number of extraction cycles and d-SPE sorbent amount. Linearity (R2) higher than 0.992, accuracy (expressed as relative recoveries) in the range from 81 to 126%, precision (expressed as relative standard deviation) lower than 19% and limits of detection between 0.025 and 12.5 ng g−1 dry weight were achieved. The method was applied to leafy vegetables (lettuce, spinach and chard) and root vegetables (carrot, turnip and potato) from a local market. The highest concentrations corresponded to the surfactants reaching levels up to 114 ng g−1 (dry weight), in one of the lettuce samples analyzed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1533, 19 January 2018, Pages 49-56
نویسندگان
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