Carbon nanotubes modified with antimony nanoparticles in a paraffin composite electrode: Simultaneous determination of sulfamethoxazole and trimethoprim

被引：77
作者：
Cesarino, Ivana [1 ]
Cesarino, Vivian [2 ]
Lanza, Marcos R. V. [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[2] Univ Sao Paulo, Escola Engn Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 188卷
基金：
巴西圣保罗研究基金会;
关键词：
Antimony nanoparticles; Carbon nanotubes; Paraffin composite electrode; Antibiotics; PULSE VOLTAMMETRIC DETERMINATION; FILM ELECTRODE; ELECTROCHEMICAL DETECTION; ELECTROANALYTICAL DETERMINATION; MICROFLUIDIC DEVICE; OXIDATION;
D O I：
10.1016/j.snb.2013.08.047
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new sensor has been developed for the simultaneous detection of sulfamethoxazole (SMX) and trimethoprim (TMP) using differential pulse voltammetry at a paraffin composite electrode based on multi-walled carbon nanotubes (MWCNT) modified with antimony nanoparticles (SbNPs). The morphology of the MWCNT-SbNPs nanocomposite and the electrochemical performance of the compositeelectrode were characterised by field emission gun scanning electron microscopy and cyclic voltammetry, respectively. The synergistic effect of the carbon nanotubes and the SbNPs yielded LOD of 24 nmol L-1 (6.1 mu g L-1) for SMX and 31 nmol L-1(9.0 mu g L-1) for TMP. Additionally, the simultaneous determination of SMX and TMP in natural water was achieved. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：1293 / 1299
页数：7
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