کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7641352 1494864 2017 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel extractant impregnated resin for preconcentration and determination of uranium from environmental samples
ترجمه فارسی عنوان
رزین آغشته کننده رنو برای پیشکنندگی و تعیین اورانیم از نمونه های محیطی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel method based on impregnation of Amberlite XAD-4 with extractant isonitroso-4-methyl-2-pentanone (IMP) has been developed for U6 + extraction and determination in various samples. The prepared extractant impregnated resin (EIR) sorbent was characterized by the field emission scanning electron microscope. The sorbent was packed in a glass column and investigated for various parameters such as pH, eluent, sample and eluent flow rates to optimize sorption desorption conditions for U6 +. U6 + is quantitatively determined at pH 4 with flow rate 2 mL/min which showed recovery of 98.9%. The sorption behaviour of U6 + by EIR was also studied using different equilibrium isotherms and kinetic models and the experimental data confirmed that it follows Freundlich isotherm and Weber-Morris pore diffusion kinetic model. The investigation of foreign ions influence on U6 + sorption showed least interference and thus, facilitated its extraction and determination in Uranmicrolite (leachate) ore tailing, synthetic mixtures and spiked water samples. The detection limit was 0.41 μg/L while the limit of quantification as 1.35 μg/L made the method quite accurate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 130, January 2017, Pages 442-451
نویسندگان
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