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Detection of Cu2+in Water Based on Histidine-Gold Labeled Multiwalled Carbon Nanotube Electrochemical Sensor
- Source :
- International Journal of Analytical Chemistry, Vol 2017 (2017)
- Publication Year :
- 2017
- Publisher :
- Hindawi Limited, 2017.
-
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 10−11–10−7 mol/L, and the limit of detection is 10−12 mol/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.
- Subjects :
- Detection limit
Nanotube
lcsh:QD71-142
Materials science
Article Subject
010401 analytical chemistry
Inorganic chemistry
lcsh:Analytical chemistry
chemistry.chemical_element
02 engineering and technology
Carbon nanotube
021001 nanoscience & nanotechnology
01 natural sciences
Copper
0104 chemical sciences
Analytical Chemistry
Electrochemical gas sensor
law.invention
Ion
chemistry
law
0210 nano-technology
Atomic absorption spectroscopy
Histidine
Subjects
Details
- ISSN :
- 16878779 and 16878760
- Volume :
- 2017
- Database :
- OpenAIRE
- Journal :
- International Journal of Analytical Chemistry
- Accession number :
- edsair.doi.dedup.....e14f885fc30e6b6dfb6919ae104e698c
- Full Text :
- https://doi.org/10.1155/2017/1727126