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基于组氨酸-金标记多壁碳纳米管电化学传感器检测水中的铜

Detection of Cu in Water Based on Histidine-Gold Labeled Multiwalled Carbon Nanotube Electrochemical Sensor.

作者信息

Zhu Rilong, Zhou Gangqiang, Tang Fengxia, Tong Chunyi, Wang Yeyao, Wang Jinsheng

机构信息

College of Water Sciences, Beijing Normal University, Engineering Research Center for Groundwater Pollution Control and Remediation, Ministry of Education, Beijing 100875, China.

Hunan Province Environmental Monitoring Centre, Protection Key Laboratory of Monitoring for Heavy Metal Pollutants State Environmental, Changsha 410014, China.

出版信息

Int J Anal Chem. 2017;2017:1727126. doi: 10.1155/2017/1727126. Epub 2017 Mar 20.

DOI:10.1155/2017/1727126
PMID:28408929
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5376936/
Abstract

Based on the strong interaction between histidine and copper ions and the signal enhancement effect of gold-labeling carbon nanotubes, an electrochemical sensor is established and used to measure copper ions in river water. In this study the results show that the concentrations of copper ion have well linear relationship with the peak current in the range of 10-10mol/L, and the limit of detection is 10mol/L. When using this method to detect copper ions in the Xiangjiang River, the test results are consistent with the atomic absorption method. This study shows that the sensor is convenient to be used in daily monitoring of copper ions in river water.

摘要

基于组氨酸与铜离子之间的强相互作用以及金标记碳纳米管的信号增强作用，构建了一种电化学传感器并用于测定河水中的铜离子。本研究结果表明，在10⁻¹⁰mol/L范围内，铜离子浓度与峰电流具有良好的线性关系，检测限为10⁻¹¹mol/L。采用该方法检测湘江水中的铜离子时，测试结果与原子吸收法一致。本研究表明该传感器便于用于河水中铜离子的日常监测。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/9559f54b515e/IJAC2017-1727126.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/149c69b14f1a/IJAC2017-1727126.001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/8b4a9fa4cd98/IJAC2017-1727126.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/3c785fb31a11/IJAC2017-1727126.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/946328f77221/IJAC2017-1727126.005.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/8976cf1e6e2e/IJAC2017-1727126.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/9559f54b515e/IJAC2017-1727126.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/149c69b14f1a/IJAC2017-1727126.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/11f0d74939ed/IJAC2017-1727126.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/8b4a9fa4cd98/IJAC2017-1727126.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/3c785fb31a11/IJAC2017-1727126.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/946328f77221/IJAC2017-1727126.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/c7d22b7412d7/IJAC2017-1727126.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/8976cf1e6e2e/IJAC2017-1727126.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bb3e/5376936/9559f54b515e/IJAC2017-1727126.008.jpg

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