کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
742371 1462113 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel non-enzymatic sensor for urea using a polypyrrole-coated platinum electrode
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A novel non-enzymatic sensor for urea using a polypyrrole-coated platinum electrode
چکیده انگلیسی

The potentiodynamic polymerization of pyrrole is carried out on Pt electrodes using sodium dodecyl sulphate and the coated electrode is employed for sensing of urea non-enzymatically. Employing amperometric and impedimetric methods, urea is estimated in mildly acidic conditions. A detection limit of 40 μM is obtained along with a linearity of 80–1440 μM and a sensitivity of 1.11 μA μM−1 cm−2 from the amperometric data. The Nyquist plot is employed for the construction of the calibration curve from the impedance analysis. The interference of different compounds such as ascorbic acid, uric acid, sodium chloride and calcium chloride is also analyzed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 177, February 2013, Pages 478–486
نویسندگان
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