Preparation and application of a simple electrochemical sensor for the determination of copper in some real and standard samples
| Autor: | Mojtaba Nasiri-Majd, Hamid Fazelirad, Mohammad Ali Taher |
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| Rok vydání: | 2015 |
| Předmět: |
Detection limit
Materials science General Chemical Engineering 010401 analytical chemistry General Engineering Analytical chemistry General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Electrolyte Carbon nanotube 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Copper 0104 chemical sciences Electrochemical gas sensor law.invention Anodic stripping voltammetry chemistry law Electrode General Materials Science 0210 nano-technology |
| Zdroj: | Ionics. 22:289-296 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-015-1533-9 |
| Popis: | In this study, anodic stripping voltammetry was optimized and used for the trace determination of copper ions using modified carbon paste electrode with dicyclohexyl-18-crown-6 and multi-walled carbon nanotubes. The important and critical parameters such as pH, electrolyte type, electrode composition, deposition time, and reduction potential was studied and optimized. Copper shows a sharp peak at +0.095 V that was used for its determination from 4.0 to 200 ng mL−1. With the application of the suggested method, the detection limit and relative standard deviation were obtained as 1.1 ng mL−1 and ±2.3 %, respectively. This electrochemical sensor has several advantages such as simple and low cost preparation, good reproducibility, low LOD, and high speed. The suggested sensor was applied successfully for the determination of copper ions in environmental, biological, and standard samples. |
| Databáze: | OpenAIRE |
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