کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1254846 971395 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of poly (2,6-pyridinedicarboxylic acid)/MWNTs modified electrode for simultaneous determination of guanine and adenine in DNA
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Fabrication of poly (2,6-pyridinedicarboxylic acid)/MWNTs modified electrode for simultaneous determination of guanine and adenine in DNA
چکیده انگلیسی

The fabrication of poly (2,6-pyridinedicarboxylic acid)/MWNTs modified glass electrode (PPDA/MWNTs/GCE) was proposed and used for individual or simultaneous determination of guanine and adenine. The performances of the PPDA/MWNTs/GCE were characterized with cyclic voltammetry (CV). The modified electrode exhibited enhanced electrocatalytic behavior and good stability for the detection of guanine and adenine. Differential pulse voltammetry (DPV) was used to determine the concentration of guanine, adenine. The detection limit (S/N = 3) for guanine and adenine was 0.045 μmol/L and 0.05 μmol/L, respectively. The electrochemical method for the measurement of guanine and adenine in calf thymus DNA was also developed with this modified electrode and the result was satisfactory.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 22, Issue 8, August 2011, Pages 981–984
نویسندگان
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