کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
751136 1462124 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The selective detection of dopamine at a polypyrrole film doped with sulfonated β-cyclodextrins
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
The selective detection of dopamine at a polypyrrole film doped with sulfonated β-cyclodextrins
چکیده انگلیسی

A highly selective dopamine sensor was fabricated by doping polypyrrole with a sulfonated β-cyclodextrin. This composite material enabled the selective sensing of dopamine in the presence of a large excess of ascorbic acid and prevented the regeneration of dopamine through the homogeneous catalytic reaction of the ascorbate anion with the dopamine-o-quinone. A single redox wave, corresponding to the oxidation of dopamine, was observed in dopamine/ascorbate mixtures, giving a truly selective dopamine sensor. The limit of detection was measured as 3.2 × 10−6 M for dopamine.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 150, Issue 2, 28 October 2010, Pages 498–504
نویسندگان
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