کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1242963 1495852 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of silver hexacyanoferrate nanoparticles and its application for the simultaneous determination of ascorbic acid, dopamine and uric acid
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Preparation of silver hexacyanoferrate nanoparticles and its application for the simultaneous determination of ascorbic acid, dopamine and uric acid
چکیده انگلیسی

A silver hexacyanoferrate nanoparticles/carbon nanotubes modified glassy carbon electrode was fabricated and then successfully used for the simultaneous determination of ascorbic acid, dopamine and uric acid by cyclic voltammetry. A detailed investigation by transmission electron microscopy (TEM) and electrochemistry was performed in order to elucidate the preparation process and properties of the nanocomposites. The size of silver hexacyanoferrate nanoparticles was examined by TEM around 27 nm. Linear calibration plots were obtained over the range of 4.0 × 10−6–7.8 × 10−5, 2.4 × 10−6–1.3 × 10−4 and 2.0 × 10−6–1.5 × 10−4 mol L−1 with detection limits of 4.2 × 10−7,1.4 × 10−7 and 6.0 × 10−8 mol L−1 for ascorbic acid, dopamine and uric acid, respectively. The practical analytical utilities of the modified electrode were demonstrated by the determination of ascorbic acid, dopamine and uric acid in urine and human blood serum samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 80, Issue 5, 15 March 2010, Pages 1657–1664
نویسندگان
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