کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7601105 | 1492148 | 2014 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of polycyclic aromatic hydrocarbons (PAH4) in food by vesicular supramolecular solvent-based microextraction and LC-fluorescence detection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Determination of polycyclic aromatic hydrocarbons (PAH4) in food by vesicular supramolecular solvent-based microextraction and LC-fluorescence detection Determination of polycyclic aromatic hydrocarbons (PAH4) in food by vesicular supramolecular solvent-based microextraction and LC-fluorescence detection](/preview/png/7601105.png)
چکیده انگلیسی
An organic solvent-free microextraction was proposed as a simple and fast sample treatment for the determination of PAH4 (viz. benz[a]anthracene, chrysene, benzo[b]fluorantene and benzo[a]pyrene). The method involved the stirring of 200 mg of foodstuff with 200 μL of a supramolecular solvent made up of octanoic acid/tetrabutylammonium octanoate vesicles for 10 min. Then, the extract was analysed by liquid chromatography/fluorescence detection. Neither dilution nor further clean-up steps of the extracts were needed. The limit of quantitation of the method (0.3-0.7 μg kgâ1) was below the threshold limit established for benzo[a]pyrene in food by EU directives (1-10 μg kgâ1). The method was successfully applied to the analysis of smoked meat and fish, bivalve mollusks and processed cereal-based food for infants. Benzo[a]pyrene was quantified and/or detected in most of the analysed samples. The recoveries obtained for PAH4 were from 92% to 103% with relative standard deviations less than 5%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 143, 15 January 2014, Pages 341-347
Journal: Food Chemistry - Volume 143, 15 January 2014, Pages 341-347
نویسندگان
Francisco José López-Jiménez, Ana Ballesteros-Gómez, Soledad Rubio,