期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 316, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2020.128102
关键词
Nitrite sensing; SnO2 films; Patterned microchips; Amperometric sensor; Nanomaterials
资金
- Romanian National Authority for Research and Innovation CCCDI-UEFISCDI within PNIII [39/2016]
- EU (ERDF) INFRANANOCHEM [19/01.03.2009]
Our work aims to develop a novel electrochemical sensing platform based on SnO2/Pt/Ti/SiO2/Si for selective nitrite detection. SnO2 coatings were prepared by classic sol-gel and microwave assisted sol-gel technique. In order to establish the best preparation conditions and electrocatalytic properties of the SnO2/Pt/Ti/SiO2/Si a complex investigation using X-ray diffraction (XRD), atomic force (AFM), scanning electron microscopy (SEM) as well as electrochemical methods like cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), differential pulse voltammetry (DPV) and chronoamperometry (CA) was accomplished. The proposed platform demonstrated high sensitivity, selectivity and good stability for nitrite detection being a proper tool in nitrite sensing in real samples. A linear response was obtained on concentration range between 10 and 400 mu M with the limits of detection and quantification of 1.7 (+/- 0.1) mu M and 5.6 (+/- 0.2) mu M, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据