An original ferroferric oxide and gold nanoparticles-modified glassy carbon electrode for the determination of bisphenol A

被引：82

作者：

Santana, Edson R. ^{[1
]}

de Lima, Camila A. ^{[1
]}

Piovesan, Jamille V. ^{[1
]}

Spinelli, Almir ^{[1
]}

机构：

[1] Univ Fed Santa Catarina, CFM, Dept Quim, Grp Estudos Proc Eletroquim & Eletroanalit, Campus Univ Reitor Joao David Ferreira Lima, BR-88040900 Florianopolis, SC, Brazil

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 240卷

关键词：

Ferroferric oxide nanoparticles; Gold nanoparticles; Modified electrode; Bisphenol A; Voltammetry; ELECTROCHEMICAL SENSOR; GRAPHENE OXIDE; QUANTUM DOTS; BIOSENSORS; COMPOSITE; SAMPLES; POLYMER; SYSTEM; CHEMILUMINESCENCE; CHROMATOGRAPHY;

D O I：

10.1016/j.snb.2016.09.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel glassy carbon electrode (GCE) modified with a film of ferroferric oxide nanoparticles (Fe3O4 NPs) over a film of gold nanoparticles (Au NPs), both stabilized in a polymer solution of 3-n-propyl-4-picolinium silsesquioxane chloride (Si4Pic(+)Cl(-)), is presented for the electroanalytical determination of bisphenol A (BPA). At the modified electrode, cyclic voltammograms of BPA in B-R buffer (pH 9.0) showed a diffusion-controlled irreversible oxidation peak at around +0.470 V. Under optimized experimental conditions for differential pulse voltammetry experiments, the peak current was found to vary linearly with the concentration of BPA in the range of 201400 nmol L-1 (R-2 = 0.996) with a detection limit of 7.0 nmol L-1. The modified electrode Fe3O4 NPs-Si4Pic(+)Cl(-)/Au NPs-Si4Pic(+)Cl(-)/GCE was successfully employed for the determination of BPA in different commercial plastic samples. Satisfactory recoveries were obtained in the range of 90120%, in agreement with the comparative technique (UVvis spectroscopy). (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：487 / 496

页数：10

共 52 条

[1] Gold nanoparticles modified carbon paste electrode as an efficient electrochemical sensor for rapid and sensitive determination of cefixime in urine and pharmaceutical samples [J].