کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7596215 1492124 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapid screening of water soluble arsenic species in edible oils using dispersive liquid-liquid microextraction
ترجمه فارسی عنوان
غربالگری سریع آرسنیک محلول در آب در روغن های خوراکی با استفاده از میکرو اکستراکت مایع
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A methodology for the non-chromatographic screening of the main arsenic species present in edible oils is discussed. Reverse dispersive liquid-liquid microextraction was used to extract water soluble arsenic compounds (inorganic arsenic, methylarsonate, dimethylarsinate and arsenobetaine) from the edible oils into a slightly acidic aqueous medium. The total arsenic content was measured in the extracts by electrothermal atomic absorption spectrometry using palladium as the chemical modifier. By repeating the measurement using cerium instead of palladium, the sum of inorganic arsenic and methylarsonate was obtained. The detection limit was 0.03 ng As per gram of oil. Data for the total and water-soluble arsenic levels of 29 samples of different origin are presented. Inorganic arsenic was not found in any of the samples marketed as edible oils.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 167, 15 January 2015, Pages 396-401
نویسندگان
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