An Electrochemical Sensor Based on Electropolymerization of β-Cyclodextrin on Glassy Carbon Electrode for the Determination of Fenitrothion

被引：8

作者：

Wang, Rong ^{[1
]}

Wang, Shulong ^{[1
]}

Qin, Caihong ^{[1
]}

Nie, Qiyang ^{[1
]}

Luo, Yougang ^{[1
]}

Qin, Qi-Pin ^{[1
]}

Wang, Ruijuan ^{[1
]}

Liu, Baiquan ^{[2
,3
]}

Luo, Dongxiang ^{[4
]}

机构：

[1] Yulin Normal Univ, Coll Chem & Food Sci, Guangxi Key Lab Agr Resources Chem & Biotechnol, 1303 Jiaoyudong Rd, Yulin 537000, Peoples R China

[2] South China Univ Technol, State Key Lab Luminescent Mat & Devices, 381 Wushan Rd, Guangzhou 510640, Peoples R China

[3] Sun Yatsen Univ, Sch Elect & Informat Technol, Guangzhou 510275, Peoples R China

[4] Guangzhou Univ, Huangpu Hydrogen Innovat Ctr, Sch Chem & Chem Engn, Guangzhou 510006, Peoples R China

来源：

SENSORS | 2023年 / 23卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electrochemical polymerization; beta-cyclodextrin; pesticide determination; fenitrothion; REDUCED-GRAPHENE OXIDE; PESTICIDE-RESIDUES; POLYMER; CHROMATOGRAPHY;

D O I：

10.3390/s23010435

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An electrochemical sensor enabled by electropolymerization (EP) of beta-cyclodextrin on glassy carbon electrode (beta-CDP/GCE) is built for the determination of fenitrothion (FNT). The effects of the EP cycles, pH value, and enrichment time on the electrochemical response of FNT were studied. With the optimum conditions, good linear relationships between the current of the reduction peak of the nitroso derivative of FNT and the concentration are obtained in the range of 10-150 and 150-4000 ng/mL, with a detection limit of 6 ng/mL (S/N = 3). beta-CDP/GCE also exhibits a satisfactory applicability in cabbage and tap water, with recovery values between 98.43% and 112%. These outstanding results suggest that beta-CDP/GCE could be a new effective alternative for the determination of FNT in real samples.

引用

页数：11

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