Poly(thionine)-carbon nanotube modified carbon film electrodes and application to the simultaneous determination of acetaminophen and dipyrone

被引：41
作者：
Ghica, M. Emilia [1 ]
Ferreira, Grasyelle M. [1 ,2 ]
Brett, Christopher M. A. [1 ]
机构：
[1] Univ Coimbra, Dept Chem, Fac Sci & Technol, P-3004535 Coimbra, Portugal
[2] Univ Fed Vales Jequitinhonha & Mucuri, Inst Ciencia & Tecnol, Diamantina, MG, Brazil
来源：
JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2015年 / 19卷 / 09期
关键词：
Carbon nanotubes; Poly(thionine); Electrochemical sensors; Acetaminophen; Dipyrone; SENSITIVE VOLTAMMETRIC SENSOR; ELECTROCHEMICAL SENSOR; PASTE ELECTRODE; ASCORBIC-ACID; URIC-ACID; PARACETAMOL; PERFORMANCE; BIOSENSORS; OXIDATION; CHITOSAN;
D O I：
10.1007/s10008-015-2926-4
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Multi-walled carbon nanotube (MWCNT)-poly(thionine) (PTH) nanostructures were formed on carbon film electrodes (CFE), the polymer film being formed beneath or on top of MWCNT, to give two different sensor architectures, PTH/MWCNT/CFE or MWCNT/PTH/CFE. Characterization of the novel nanostructures was carried out by cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. The modified electrodes were then used for sensing acetaminophen (ACOP) and dipyrone by differential pulse voltammetry and fixed-potential amperometry independently and simultaneously. Analytical parameters were determined and the results compared with similarly modified electrodes reported in the literature. An interference study as well as recovery measurements in pharmaceutical samples was successfully performed.
引用
收藏
页码：2869 / 2881
页数：13
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