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

页码：667 / 674

页数：8

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