Simultaneous determination of dihydroxybenzene isomers based on thionine functionalized multiwall carbon nanotubes modified electrode

被引：12
作者：
Liu, Yuanxiang [1 ]
Wang, Weiwei [1 ]
Wei, Huan [1 ]
Li, Jiawei [1 ]
Lu, Xiaoquan [1 ]
Liu, Xiuhui [1 ]
机构：
[1] Northwest Normal Univ, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2014年 / 44卷 / 05期
关键词：
Thionine; Functionalized multiwall carbon nanotubes; Dihydroxybenzene isomers; Simultaneous determination; CAPILLARY ELECTROCHROMATOGRAPHY; AMPEROMETRIC DETERMINATION; LIQUID-CHROMATOGRAPHY; GOLD NANOPARTICLES; POSITIONAL ISOMERS; STATIONARY-PHASE; ASCORBIC-ACID; HYDROQUINONE; CATECHOL; COMPOSITE;
D O I：
10.1007/s10800-014-0674-2
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this article, simultaneous determination of dihydroxybenzene isomers [hydroquinone (HQ), catechol (CC), and resorcinol (RC)] was investigated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at thionine functionalized multiwalled carbon nanotube (TH-MWCNTs) modified glass carbon electrode. CV and DPV results showed that the TH-MWCNTs modified electrode exhibited excellent recognition ability toward the three isomers of dihydroxybenzene. Their oxidize peak currents were linear over ranges from 9.0 x 10(-7) to 3.6 x 10(-4) M for HQ, from 3.3 x 10(-6) to 8.1 x 10(-4) M for CC and from 4.3 x 10(-6) to 9.0 x 10(-4) M for RC, with the detection limits of 2.7 x 10(-7), 1.0 x 10(-6), and 1.1 x 10(-6) M, respectively. The proposed method would potentially be applied to multi-component analysis in environmental control and chemical industry.
引用
收藏
页码：667 / 674
页数：8
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