二氧化锆/石墨烯复合材料对亚硝酸盐的电化学传感研究

引用本文: 陕多亮, 王永兰, 王艳凤, 卢小泉. 二氧化锆/石墨烯复合材料对亚硝酸盐的电化学传感研究[J]. 分析化学, 2017, 45(4): 502-507. doi: 10.11895/j.issn.0253-3820.160775 shu

Citation: SHAN Duo-Liang, WANG Yong-Lan, WANG Yan-Feng, LU Xiao-Quan. Study of Electrochemical Sensor for Nitrite Based on Composites of Zirconium Dioxide Nanoparticles/Reduced Graphene Oxide[J]. Chinese Journal of Analytical Chemistry, 2017, 45(4): 502-507. doi: 10.11895/j.issn.0253-3820.160775 shu

二氧化锆/石墨烯复合材料对亚硝酸盐的电化学传感研究

甘肃省生物电化学与环境分析重点实验室, 西北师范大学化学化工学院, 兰州 730070
基金项目:
本文系国家自然科学基金（Nos.21575115，21327005）、电分析化学国家重点实验室开放课题（No.SKLEAC201603）、兰州市人才创新创业科技计划项目（No.2014-RC-39）、兰州市科技计划项目（No.2016-3-69）、西北师大青年教师提升计划（No.NWNU-LKQN-14-19）资助

摘要: 制备了一种二氧化锆/还原氧化石墨烯（ZrO₂NPs/rGO）复合材料修饰电极的亚硝酸盐电化学传感器，并成功用于亚硝酸盐的检测。采用循环伏安法和电流-时间曲线考察了修饰电极的电化学行为。实验结果表明，ZrO₂NPs/rGO复合材料修饰电极对亚硝酸盐具有良好的电流响应。在最优实验条件下，电流-时间曲线中的电流响应信号与亚硝酸盐浓度在3.0×10^-7~1.0×10^-6 mol/L和1.0×10^-6~6.0×10^-6 mol/L的范围内呈良好的线性关系，检测限为1.0×10^-7 mol/L（S/N 3）。该传感器灵敏性高、稳定性和重现性好。使用此传感器检测实际样品香肠中的亚硝酸盐的回收率为93.7%~110.4%，相对标准偏差为1.6%~2.1%。

关键词:

English

Study of Electrochemical Sensor for Nitrite Based on Composites of Zirconium Dioxide Nanoparticles/Reduced Graphene Oxide

Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
Received Date: 21 October 2016
Revised Date: 13 February 2017
Fund Project:
This work was supported by the National Natural Science Foundation of China (Nos. 21575115, 21327005)

Abstract: A nitrite electrochemical sensor based on electrodeposition of zirconium dioxide nanoparticles on reduced graphene oxide modified electrode was successfully constructed for the detection of nitrite. The electrochemical behavior of the modified electrode was investigated by cyclic voltammetry and amperometric i-t curve. Under the optimal conditions, the amperometric i-t curve response of the electrode showed a linear relationship with nitrite concentration in the range of 3.0×10^-7-1.0×10^-6 mol/L and 1.0×10^-6-6.0×10^-6 mol/L, and the detection limit was 1.0×10^-7 mol/L (S/N=3). The fabricated sensor exhibited high sensitivity, good stability and high reproducibility. This sensor was applied for the detection of nitrite in sausage samples with favorable recoveries of 93.7%-110.4% and relative standard deviation (RSD) of 1.6%-2.1%.

Key words:

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

二氧化锆/石墨烯复合材料对亚硝酸盐的电化学传感研究

English

Study of Electrochemical Sensor for Nitrite Based on Composites of Zirconium Dioxide Nanoparticles/Reduced Graphene Oxide

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

二氧化锆/石墨烯复合材料对亚硝酸盐的电化学传感研究

English

Study of Electrochemical Sensor for Nitrite Based on Composites of Zirconium Dioxide Nanoparticles/Reduced Graphene Oxide

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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