Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination
A copper film modified glassy carbon electrode (CuF/GCE) and a novel copper film with carbon nanotubes modified screen-printed electrode (CuF/CN/SPE) for anodic stripping voltammetric measurement of ultratrace levels of Cd(II) are presented. During the development of the research procedure, several...
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MDPI AG
2021-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/18/5148 |
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| author | Joanna Wasąg Malgorzata Grabarczyk |
| author_facet | Joanna Wasąg Malgorzata Grabarczyk |
| author_sort | Joanna Wasąg |
| collection | DOAJ |
| description | A copper film modified glassy carbon electrode (CuF/GCE) and a novel copper film with carbon nanotubes modified screen-printed electrode (CuF/CN/SPE) for anodic stripping voltammetric measurement of ultratrace levels of Cd(II) are presented. During the development of the research procedure, several main parameters were investigated and optimized. The optimal electroanalytical performance of the working electrodes was achieved in electrolyte 0.1 M HCl and 2 × 10<sup>−4</sup> M Cu(II). The copper film modified glassy carbon electrode exhibited operation in the presence of dissolved oxygen with a calculated limit of detection of 1.7 × 10<sup>−10</sup> M and 210 s accumulation time, repeatability with RSD of 4.2% (<i>n</i> = 5). In the case of copper film with carbon nanotubes modified screen-printed electrode limit of detection amounted 1.3 × 10<sup>−10</sup> M for accumulation time of 210 s and with RSD of 4.5% (<i>n</i> = 5). The calibration curve has a linear range in the tested concentration of 5 × 10<sup>−10</sup>–5 × 10<sup>−7</sup> M (r = 0.999) for CuF/GCE and 3 × 10<sup>−10</sup>–3 × 10<sup>−7</sup> M (r = 0.999) for CuF/CN/SPE with 210 s accumulation time in both cases. The used electrodes enable trace determination of cadmium in different environmental water samples containing organic matrix. The validation of the proposed procedures was carried out through analysis certified reference materials: TM-25.5, SPS-SW1, and SPS-WW1. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T07:30:12Z |
| publishDate | 2021-09-01 |
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| series | Materials |
| spelling | doaj.art-a933bb52d5ea4a32b3d268331edae4d22023-11-22T13:59:34ZengMDPI AGMaterials1996-19442021-09-011418514810.3390/ma14185148Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) DeterminationJoanna Wasąg0Malgorzata Grabarczyk1Department of Materials Engineering, Institute of Engineering and Technical Sciences, Faculty of Natural Sciences and Health, The John Paul II Catholic University of Lublin, 20-950 Lublin, PolandDepartment of Analytical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, PolandA copper film modified glassy carbon electrode (CuF/GCE) and a novel copper film with carbon nanotubes modified screen-printed electrode (CuF/CN/SPE) for anodic stripping voltammetric measurement of ultratrace levels of Cd(II) are presented. During the development of the research procedure, several main parameters were investigated and optimized. The optimal electroanalytical performance of the working electrodes was achieved in electrolyte 0.1 M HCl and 2 × 10<sup>−4</sup> M Cu(II). The copper film modified glassy carbon electrode exhibited operation in the presence of dissolved oxygen with a calculated limit of detection of 1.7 × 10<sup>−10</sup> M and 210 s accumulation time, repeatability with RSD of 4.2% (<i>n</i> = 5). In the case of copper film with carbon nanotubes modified screen-printed electrode limit of detection amounted 1.3 × 10<sup>−10</sup> M for accumulation time of 210 s and with RSD of 4.5% (<i>n</i> = 5). The calibration curve has a linear range in the tested concentration of 5 × 10<sup>−10</sup>–5 × 10<sup>−7</sup> M (r = 0.999) for CuF/GCE and 3 × 10<sup>−10</sup>–3 × 10<sup>−7</sup> M (r = 0.999) for CuF/CN/SPE with 210 s accumulation time in both cases. The used electrodes enable trace determination of cadmium in different environmental water samples containing organic matrix. The validation of the proposed procedures was carried out through analysis certified reference materials: TM-25.5, SPS-SW1, and SPS-WW1.https://www.mdpi.com/1996-1944/14/18/5148copper modified electrodecarbon-based electrode materialsscreen-printed electrodeelectrochemical detectionstripping voltammetrycadmium determination |
| spellingShingle | Joanna Wasąg Malgorzata Grabarczyk Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination Materials copper modified electrode carbon-based electrode materials screen-printed electrode electrochemical detection stripping voltammetry cadmium determination |
| title | Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination |
| title_full | Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination |
| title_fullStr | Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination |
| title_full_unstemmed | Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination |
| title_short | Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination |
| title_sort | copper film modified glassy carbon electrode and copper film with carbon nanotubes modified screen printed electrode for the cd ii determination |
| topic | copper modified electrode carbon-based electrode materials screen-printed electrode electrochemical detection stripping voltammetry cadmium determination |
| url | https://www.mdpi.com/1996-1944/14/18/5148 |
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