Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay
Calcinated and acidified clay modified carbon graphite electrode was deployed in the simultaneous evaluation of traces of Pb2+ and Cd2+ in solution. After 5 minutes of accumulation in the circuit, the sensitivity of the electrode was evaluated in a solution of Na2SO4 (0.1 M) by square wave voltammet...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/6900839 |
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| author | Niraka Blaise Hambate Gomdje Valéry Raja Maallah Mohamed Oubaouz Bakary Tigana Djonse Justin Edwin Andrew Ofudje Abdelilah Chtaini |
| author_facet | Niraka Blaise Hambate Gomdje Valéry Raja Maallah Mohamed Oubaouz Bakary Tigana Djonse Justin Edwin Andrew Ofudje Abdelilah Chtaini |
| author_sort | Niraka Blaise |
| collection | DOAJ |
| description | Calcinated and acidified clay modified carbon graphite electrode was deployed in the simultaneous evaluation of traces of Pb2+ and Cd2+ in solution. After 5 minutes of accumulation in the circuit, the sensitivity of the electrode was evaluated in a solution of Na2SO4 (0.1 M) by square wave voltammetry on the one hand with Pb (II) and on the other hand with Cd (II). Several experimental conditions such as the composition of the carbon clay paste, the effect of preconcentration time, the sweeping speed, concentration effect, media pH, and interference ionic response to the electrochemical response of the working electrode were examined. It was observed that, after 5 minutes of preconcentration, detection limits of 0.15513 μmol·L−1 and 0.24227 μmol·L−1 were obtained for Pb2+ and Cd2+ in the electrolyte solution and 0.08438 μmol·L−1 and 0.46522 μmol·L−1, respectively, when tap water was used. The detection was effective by square wave voltammetry with a more intense current density with respect to lead. |
| format | Article |
| id | doaj-art-2c4c3b5630c84be6aca07e0a76fbd6a3 |
| institution | Kabale University |
| issn | 2090-8873 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-2c4c3b5630c84be6aca07e0a76fbd6a32025-02-03T06:13:09ZengWileyJournal of Analytical Methods in Chemistry2090-88732022-01-01202210.1155/2022/6900839Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated ClayNiraka Blaise0Hambate Gomdje Valéry1Raja Maallah2Mohamed Oubaouz3Bakary Tigana Djonse Justin4Edwin Andrew Ofudje5Abdelilah Chtaini6National Advanced School of EngineeringNational Advanced School of EngineeringTeam of Molecular Electrochemistry and Inorganic MaterialsTeam of Molecular Electrochemistry and Inorganic MaterialsNational Advanced School of EngineeringDepartment of Chemical SciencesTeam of Molecular Electrochemistry and Inorganic MaterialsCalcinated and acidified clay modified carbon graphite electrode was deployed in the simultaneous evaluation of traces of Pb2+ and Cd2+ in solution. After 5 minutes of accumulation in the circuit, the sensitivity of the electrode was evaluated in a solution of Na2SO4 (0.1 M) by square wave voltammetry on the one hand with Pb (II) and on the other hand with Cd (II). Several experimental conditions such as the composition of the carbon clay paste, the effect of preconcentration time, the sweeping speed, concentration effect, media pH, and interference ionic response to the electrochemical response of the working electrode were examined. It was observed that, after 5 minutes of preconcentration, detection limits of 0.15513 μmol·L−1 and 0.24227 μmol·L−1 were obtained for Pb2+ and Cd2+ in the electrolyte solution and 0.08438 μmol·L−1 and 0.46522 μmol·L−1, respectively, when tap water was used. The detection was effective by square wave voltammetry with a more intense current density with respect to lead.http://dx.doi.org/10.1155/2022/6900839 |
| spellingShingle | Niraka Blaise Hambate Gomdje Valéry Raja Maallah Mohamed Oubaouz Bakary Tigana Djonse Justin Edwin Andrew Ofudje Abdelilah Chtaini Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay Journal of Analytical Methods in Chemistry |
| title | Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay |
| title_full | Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay |
| title_fullStr | Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay |
| title_full_unstemmed | Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay |
| title_short | Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay |
| title_sort | simultaneous electrochemical detection of pb and cd by carbon paste electrodes modified by activated clay |
| url | http://dx.doi.org/10.1155/2022/6900839 |
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