کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1168217 960580 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecularly imprinted conducting polymer based electrochemical sensor for detection of atrazine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Molecularly imprinted conducting polymer based electrochemical sensor for detection of atrazine
چکیده انگلیسی

An original electrochemical sensor based on molecularly imprinted conducting polymer (MICP) is developed, which enables the recognition of a small pesticide target molecule, atrazine. The conjugated MICP, poly(3,4-ethylenedioxythiophene-co-thiophene-acetic acid), has been electrochemically synthesized onto a platinum electrode following two steps: (i) polymerization of comonomers in the presence of atrazine, already associated to the acetic acid substituent through hydrogen bonding, and (ii) removal of atrazine from the resulting polymer, which leaves the acetic acid substituents open for association with atrazine. The obtained sensing MICP is highly specific towards newly added atrazine and the recognition can be quantitatively analyzed by the variation of the cyclic voltammogram of MICP. The developed sensor shows remarkable properties: selectivity towards triazinic family, large range of detection (10−9 mol L−1 to 1.5 × 10−2 mol L−1 in atrazine) and low detection threshold (10−7 mol L−1).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 649, Issue 2, 7 September 2009, Pages 236–245
نویسندگان
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