Graphite Screen Printed Electrodes Functionalized with AuNPs-PEI for Nitrite Detection

被引：7

作者：

Talbi, Malak ^{[1
]}

Al-Hamry, Ammar ^{[2
]}

Teixeira, Priscila Rios ^{[3
]}

Bouhamed, Ayda ^{[2
]}

Azzouzi, Sawsen ^{[1
,4
]}

Paterno, Leonardo G. ^{[3
]}

Ben Ali, Mounir ^{[1
,4
]}

Kanoun, Olfa ^{[2
]}

机构：

[1] Univ Sousse, Higher Inst Appl Sci & Technol Sousse, Elect Dept, Sousse, Tunisia

[2] Tech Univ Chemnitz, Measurement & Sensor Technol, Chemnitz, Germany

[3] Univ Brasilia, Inst Quim, Lab Pesquisa Polimeros & Nanomat, Brasilia, DF, Brazil

[4] Ctr Res Microelect & Nanotechnol Sousse, NANOMISENE Lab, LR16CRMN01,Technopole Sousse,BP 334, Sahloul 4034, Sousse, Tunisia

来源：

2019 16TH INTERNATIONAL MULTI-CONFERENCE ON SYSTEMS, SIGNALS & DEVICES (SSD) | 2019年

关键词：

Nitrite detection; Electrochemical sensor; Gold Nanoparticles; Screen Printed Electrodes; Impedance Spectroscopy; Cyclic Voltammetry; ELECTROCHEMICAL SENSORS; CARBON NANOTUBES; GRAPHENE OXIDE; NANOPARTICLES; NITRATE;

D O I：

10.1109/ssd.2019.8893251

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper aims to develop a novel electrochemical sensor for nitrite (NO2-) detection as it is harmful to public health and environment beyond safe limits. The electrochemical sensor is based on graphite screen printed electrodes (GSPE) modified with non-toxic and biocompatible gold nanoparticles stabilized by branched polyethyleneimine (AuNPs-PEI). The functionalization of GSPE was carried out by drop casting of AuNPs- PEI solution, with the concentration of 300 mu g/mL, onto GSPE and its electrochemical behavior in the presence of NO2- was investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). After optimization of the operation conditions (pH and scan rate), the sensor provided the following figures of merit: linear range 1-10 mu M; sensitivity 0.8 mu A/mu M, and limit of detection 1 mu M. The results show that AuNPs-PEI/GSPEs are very promising for effective NO2- detection.

引用

页码：607 / 610

页数：4

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