کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
219759 463295 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gold nanoparticles/ethylenediamine/carbon nanotube modified glassy carbon electrode as the voltammetric sensor for selective determination of rutin in the presence of ascorbic acid
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Gold nanoparticles/ethylenediamine/carbon nanotube modified glassy carbon electrode as the voltammetric sensor for selective determination of rutin in the presence of ascorbic acid
چکیده انگلیسی

In this paper, the electrochemical behavior of rutin on a gold nanoparticles/ethylenediamine/multi-wall carbon nanotubes modified glassy carbon electrode (AuNPs/en/MWNTs/GCE) was investigated and the electrochemical parameters of rutin were calculated. Rutin effectively accumulated on the AuNPs/en/MWNTs/GCE and caused a pair of redox peaks at around 487 mV and 432 mV (vs. SCE) in 0.1 M phosphate buffer solution (pH 3.5). Under optimized conditions, the anodic peak current was linear to the rutin concentration in the range of 4.8 × 10−8 M−9.6 × 10−7 M. The regression equation was: ipa = 2.3728Crutin−0.1782 (ipa: 10−5 A, Crutin: μM, r = 0.9973). The detection limit of 3.2 × 10−8 M was obtained. The proposed method was successfully used to the determination of rutin content in tablet samples with satisfactory results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 645, Issue 2, 1 July 2010, Pages 115–122
نویسندگان
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