Simultaneous Determination of Catechol and Hydroquinone on Nano-Co/L-Cysteine Modified Glassy Carbon Electrode

被引：4

作者：

Huang, Baomei ^{[1
]}

Yao, Chengwei ^{[2
]}

Wang, Enyang ^{[1
]}

Du, Shizhang ^{[1
]}

Yang, Jing ^{[1
]}

Lu, Xiaoquan ^{[3
]}

机构：

[1] MianYang Normal Univ, Coll Chem & Chem Engn, Mianyang 621000, Sichuan, Peoples R China

[2] China Aerodynam Res & Dev Ctr, Facil Design & Instrumentat Inst, Mianyang 621000, Sichuan, Peoples R China

[3] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Peoples R China

来源：

ELECTROANALYSIS | 2022年 / 34卷 / 02期

关键词：

Catechol; Hydroquinone; Nano; cobalt; L-Cysteine; Electrochemical method; REDUCED GRAPHENE OXIDE; SIMULTANEOUS ELECTROCHEMICAL DETERMINATION; VOLTAMMETRIC SENSOR; MESOPOROUS CARBON; PASTE ELECTRODE; DOPED GRAPHENE; POROUS CARBON; NANOCOMPOSITE; DERIVATIVES; NANOTUBES;

D O I：

10.1002/elan.202100047

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, a novel and highly sensitive electrochemical method for simultaneous determination of catechol (CC) and hydroquinone (HQ) was developed, which worked at GCE modified with Nano cobalt (Nano-Co) by electrodeposition and L-Cysteine by electrochemical polymerization. The Nano-Co/L-Cysteine GCE was investigated by cyclic voltammetry (CV), SEM and EIS. The excellent conditions have been selected including supporting electrolyte, pH, accumulation time and scan rate. The calibration curves of were obtained that the linear regression equation was I=0.0734c+6x10(-6) in the range of 5.8 mu M to 103 mu M (R-2=0.9942) for CC and the linear regression equation was I=0.0566c+5x10(-6) in the range of 5.8 mu M to 100 mu M (R-2=0.9967) for HQ. The obtained detection limits of CC and HQ both were 6x10(-7) M. The modified electrode was successfully applied to the simultaneous determination of CC and HQ in water samples.

引用

页码：405 / 414

页数：10

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