کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5139038 | 1494861 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preconcentration system for determination of lead in chicken feed using Moringa oleifera husks as a biosorbent
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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: Preconcentration system for determination of lead in chicken feed using Moringa oleifera husks as a biosorbent Preconcentration system for determination of lead in chicken feed using Moringa oleifera husks as a biosorbent](/preview/png/5139038.png)
چکیده انگلیسی
A preconcentration procedure with solid phase extraction was developed to determine lead in samples of chicken feed by flame atomic absorption spectrometry (FAAS). The procedure involved Pb(II) sorption onto a mini-column packed with Moringa oleÃfera husks. The flow and chemical variables of the proposed system were optimized through multivariate design. The limit of detection for lead was 1.66 μg Lâ 1 (0.27 μg gâ 1) and the precision calculated on the basis of repeatability was below 1.3%. The develop method was successfully applied to spiked chicken feed samples, and accuracy was assessed through analysis of a certified reference material for rice flour (IRMM-804) and recovery tests, with recovery ranging from 83 to 144%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 133, July 2017, Pages 327-332
Journal: Microchemical Journal - Volume 133, July 2017, Pages 327-332
نویسندگان
Jordana de Assis Nunes Oliveira, Lizandra M. Cândido Siqueira, José Alistor de Sousa Neto, Nivia Maria Melo Coelho, Vanessa Nunes Alves,