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现代化工  2018, Vol. 38 Issue (1): 213-216    DOI: 10.16606/j.cnki.issn0253-4320.2018.01.051
  分析测试 本期目录 | 过刊浏览 | 高级检索 |
乙炔黑修饰碳糊电极测定汞离子
赵丽芬, 焦晨旭, 隋琪琪
中北大学理学院, 山西 太原 030051
Determination of mercury ion via acetylene black modified carbon paste electrode
ZHAO Li-fen, JIAO Chen-xu, SUI Qi-qi
School of Science, North University of China, Taiyuan 030051, China
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摘要 制备了乙炔黑修饰碳糊电极,通过循环伏安法研究了Hg2+在裸碳电极和乙炔黑修饰碳糊电极上的电化学行为。实验结果表明,Hg2+在乙炔黑修饰电极上有明显的氧化还原峰。同时对实验条件进行了优化,在该优化条件下,氧化峰峰电流随着Hg2+浓度的增加在3.0×10-7~2.4×10-5 mol/L范围内线性增加,检出限为2.3×10-8 mol/L。采用标准加入法成功地检测了模拟水样当中的痕量Hg2+
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赵丽芬
焦晨旭
隋琪琪
关键词:  乙炔黑  碳糊电极  循环伏安法  汞离子    
Abstract: Acetylene black modified carbon paste electrode is prepared.Electrochemical behaviors of mercury ion on the bare carbon paste electrode and the prepared acetylene black modified carbon paste electrode are investigated by the cyclic voltammetry.It is found from experimental results that mercury ion has an obvious redox peak on the acetylene black modified carbon paste electrode.The detection conditions are optimized at the same time.Under the optimized conditions,the oxidation peak currents are proportional to mercury ion concentration in the range of 3.0×10-7-2.4×10-5 mol·L-1,with a detection limit of 2.3×10-8 mol·L-1.The trace amounts of mercury ion in simulated water samples are successfully detected through standard addition method.
Key words:  acetylene black    carbon paste electrode    cyclic voltammetry    mercury ion
收稿日期:  2017-07-03                出版日期:  2018-01-20
O657.1  
通讯作者:  焦晨旭(1974-),女,博士,副教授,主要从事电化学分析方面的研究,通讯联系人,jcx1974@sina.com    E-mail:  jcx1974@sina.com
作者简介:  赵丽芬(1991-),女,硕士研究生,研究方向为电化学分析,2274775960@qq.com
引用本文:    
赵丽芬, 焦晨旭, 隋琪琪. 乙炔黑修饰碳糊电极测定汞离子[J]. 现代化工, 2018, 38(1): 213-216.
ZHAO Li-fen, JIAO Chen-xu, SUI Qi-qi. Determination of mercury ion via acetylene black modified carbon paste electrode. Modern Chemical Industry, 2018, 38(1): 213-216.
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http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2018.01.051  或          http://www.xdhg.com.cn/CN/Y2018/V38/I1/213
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