Electrocatalytic response of poly(cobalt tetraaminophthalocyanine)/multi-walled carbon nanotubes-Nafion modified electrode toward sulfadiazine in urine

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作者：
Xiaoping HONG Yan ZHU Yanzhen ZHANG Department of ChemistryZhejiang UniversityHangzhou China Department of ChemistryZhejiang SciTech UniversityHangzhou China Department of Stomatologythe Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou China [1 ,2 ,1 ,3 ,1 ,310028 ,2 ,310018 ,3 ,310009 ]
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来源：
Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) | 2012年 / 13卷 / 06期
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中图分类号：
R446.1 [生物化学检验、临床检验];
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摘要：
A highly sensitive amperometric sulfadiazine sensor fabricated by electrochemical deposition of poly(cobalt tetraaminophthalocyanine) (poly(Co II TAPc)) on the surface of a multi-walled carbon nanotubes-Nafion (MWCNTs-Nafion) modified electrode is described.This electrode showed a very attractive performance by combining the advantages of Co II TAPc,MWCNTs,and Nafion.Compared with the bare glassy carbon electrode (GCE) and the MWCNTs-Nafion modified electrode,the electrocatalytic activity of poly(Co II TAPc)-coated MWCNTs-Nafion GCE generated greatly improved electrochemical detections toward sulfadiazine including low oxidation potential,high current responses,and good anti-fouling performance.The oxidation peak currents of sulfadiazine obtained on the new modified electrode increased linearly while increasing the concentration of sulfadiazine from 0.5 to 43.5 μmol/L with the detection limit of 0.17 μmol/L.
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页码：503 / 510
页数：8
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