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亚硝酸根在纳米氧化锆-CTAB复合物膜修饰电极上的电化学行为及测定

Eletrochemical behaviors of NO2-at a ZrO2-CTAB composite film modified electrode and its determination

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【作者】 张克营俆基贵张娜王红艳王聪陈志兵

【Author】 ZHANG Ke-ying1,Xü Ji-gui1,ZHANG Na2,WANG Hong-yan1,WANG Cong1 and CHEN Zhi-bing1(1.Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base);Department of Chemistry-Biology,Suzhou University,Suzhou 234000;2.Department of Physical Education,Suzhou University,Suzhou 234000)

【机构】 安徽省宿州学院自旋电子与纳米材料安徽省重点实验室培育基地化学与生命科学学院安徽省宿州学院体育学院

【摘要】 制备了纳米ZrO2,采用XRD和原子力显微镜技术加以表征。构建了十六烷基三甲基溴化铵-纳米ZrO2修饰电极。用循环伏安法和示差脉冲伏安法研究了亚硝酸根(NO2-)在该修饰上的电化学行为,结果表明,该修饰电极对NO2-的氧化具有良好的电催化能力,示差脉冲伏安信号与其浓度在6×10-7~1.6×10-4mol/L范围内呈现良好的线性关系,检出限为1.3×10-7mol/L(S/N=3)。此外,方法已用于NO2-样品的测定。

【Abstract】 Nano-ZrO2 was fabricated and characterized by AFM and X-ray powder diffractometry(XRD).A ZrO2-hexadecyltrimethyl ammonium bromide modified glassy carbon electrode was fabricated.The electrochemical behaviors of nitrite at the modified electrode were investigated by cyclic voltammetry and differential pulse voltammetry.Tests showed that the modified electrode exhibited an obviously electrocatalytical activity towards the oxidation of nitrite with linear range of 6×10-7-1.6×10-4 mol/L and the detection limit of 1.3×10-7 mol/L(S/N = 3).In addition,the modified electrode exhibited favorable reproducibility and good long-term stability,and has been successfully used to determine nitrite in samples with satisfactory result.

【基金】 安徽省教育厅自然科学基金项目(KJ2012Z399),安徽省教育厅自然科学基金重点项目(KJ2012Z399,KJ2011A260,KJ2012A266,KJ2012A267);安徽省自然科学基金青年项目(1208085QB33);宿州学院科研平台开放课题(2012YKF04)资助
  • 【文献出处】 分析试验室 ,Chinese Journal of Analysis Laboratory , 编辑部邮箱 ,2013年03期
  • 【分类号】O657.1
  • 【被引频次】10
  • 【下载频次】170
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