کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
177209 458970 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A sensitive and selective fluorescent sensor for the determination of mercury(II) based on a novel triazine-thione derivative
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A sensitive and selective fluorescent sensor for the determination of mercury(II) based on a novel triazine-thione derivative
چکیده انگلیسی

A sensor membrane based on the fluorescence enhancement of a novel triazine-thione derivative, 4-ethyl-5-hydroxy-5,6-di-pyridin-2-yl-4,5-dihydro-2H-[1,2,4]triazine-3-thione, was capable of determining mercury(II) with high selectivity over the range 5.0 × 10−10 and 5.0 × 10−5 mol L−1 with a limit of detection of 1.8 × 10−10 mol L−1 (0.036 μg L−1). The sensor can be regenerated using 5% thiourea in 1.0 mol L−1 HCl solution. The sensor also displayed unique selectivity toward mercury(II) ion with respect to other common metal cations and was applied to the determination of mercury(II) in tap water and human hair samples. The accuracy of the results were comparable to those obtained by cold vapour atomic fluorescence spectrometry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 88, Issue 2, February 2011, Pages 143–148
نویسندگان
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