Electrochemical detection of dioctyl phthalate using molecularly imprinted polymer modified screen-printed electrodes

被引：20

作者：

El-Sharif, H. F. ^{[1
]}

Patel, S. ^{[1
]}

Ndunda, E. N. ^{[2
]}

Reddy, S. M. ^{[1
]}

机构：

[1] Univ Cent Lancashire, Sch Nat Sci, Dept Chem, Preston PR1 2HE, Lancs, England

[2] Machakos Univ, Dept Phys Sci, POB 136-90100, Machakos, Kenya

来源：

ANALYTICA CHIMICA ACTA | 2022年 / 1196卷

关键词：

Molecularly imprinted polymers; MIPs; Electrochemical polymerisation; Biosensor; Dioctyl phthalate (DOP); di(2-ethylhexyl) phthalate (DEHP); bis(2-ethylhexyl) phthalate; Environmental monitoring; Disposable electrodes; SENSOR; WATER;

D O I：

10.1016/j.aca.2022.339547

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report the investigation of electropolymerised molecularly imprinted polymers (E-MIPs) for the determination of dioctyl phthalate (DOP). Low-cost and eco-friendly commercially available screen printed electrodes (SPEs) were used. E-MIPs were produced using the cyclic voltammetry (CV) technique based on a water-soluble 4-aminophenol as functional monomer. E-MIPs for DOP showed affinity for the template, with 80% binding efficiency and an imprinting factor of 3. The E-MIPs were able to detect absolute levels of DOP in a time-dependent adsorption manner with the presence of 250 mu g DOP (equivalent to 12.8 mu M) detected in 5 min with a LOD (at 15 min) of 177.1 mg and LOQ of 536.6 mu g making them suitable for the measurement of DOP in freshwater when the sample is pre-concentrated. (c) 2022 Elsevier B.V. All rights reserved.

引用

页数：7

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