Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode
A commercial and disposable screen-printed carbon electrode (SPCE) has been proposed for a fast, simple and low-cost determination of Ni(II) at very low concentration levels by differential pulse adsorptive stripping voltammetry (DPAdSV) in the presence of dimethylglyoxime (DMG) as complexing agent....
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/9/5/94 |
| _version_ | 1797536235893293056 |
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| author | Víctor Padilla Núria Serrano José Manuel Díaz-Cruz |
| author_facet | Víctor Padilla Núria Serrano José Manuel Díaz-Cruz |
| author_sort | Víctor Padilla |
| collection | DOAJ |
| description | A commercial and disposable screen-printed carbon electrode (SPCE) has been proposed for a fast, simple and low-cost determination of Ni(II) at very low concentration levels by differential pulse adsorptive stripping voltammetry (DPAdSV) in the presence of dimethylglyoxime (DMG) as complexing agent. In contrast with previously proposed methods, the Ni(II)-DMG complex adsorbs directly on the screen-printed carbon surface, with no need of mercury, bismuth or antimony coatings. Well-defined stripping peaks and a linear dependence of the peak area on the concentration of Ni(II) was achieved in the range from 1.7 to 150 µg L<sup>−1</sup>, with a limit of detection of 0.5 µg L<sup>−1</sup> using a deposition time of 120 s. An excellent reproducibility and repeatability with 0.3% (<i>n</i> = 3) and 1.5% (<i>n</i> = 15) relative standard deviation, respectively, were obtained. In addition, the suitability of the SPCE as sensing unit has been successfully assessed in a wastewater certificated reference material with remarkable trueness and very good reproducibility. |
| first_indexed | 2024-03-10T11:56:47Z |
| format | Article |
| id | doaj.art-334fa1bb882d46a9a3a0d96117405460 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-10T11:56:47Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-334fa1bb882d46a9a3a0d961174054602023-11-21T17:12:37ZengMDPI AGChemosensors2227-90402021-04-01959410.3390/chemosensors9050094Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed ElectrodeVíctor Padilla0Núria Serrano1José Manuel Díaz-Cruz2Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainDepartment of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainDepartment of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainA commercial and disposable screen-printed carbon electrode (SPCE) has been proposed for a fast, simple and low-cost determination of Ni(II) at very low concentration levels by differential pulse adsorptive stripping voltammetry (DPAdSV) in the presence of dimethylglyoxime (DMG) as complexing agent. In contrast with previously proposed methods, the Ni(II)-DMG complex adsorbs directly on the screen-printed carbon surface, with no need of mercury, bismuth or antimony coatings. Well-defined stripping peaks and a linear dependence of the peak area on the concentration of Ni(II) was achieved in the range from 1.7 to 150 µg L<sup>−1</sup>, with a limit of detection of 0.5 µg L<sup>−1</sup> using a deposition time of 120 s. An excellent reproducibility and repeatability with 0.3% (<i>n</i> = 3) and 1.5% (<i>n</i> = 15) relative standard deviation, respectively, were obtained. In addition, the suitability of the SPCE as sensing unit has been successfully assessed in a wastewater certificated reference material with remarkable trueness and very good reproducibility.https://www.mdpi.com/2227-9040/9/5/94nickeldimethylglyoximeadsorptive stripping voltammetrycarbon screen-printed electrodewater samples |
| spellingShingle | Víctor Padilla Núria Serrano José Manuel Díaz-Cruz Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode Chemosensors nickel dimethylglyoxime adsorptive stripping voltammetry carbon screen-printed electrode water samples |
| title | Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode |
| title_full | Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode |
| title_fullStr | Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode |
| title_full_unstemmed | Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode |
| title_short | Determination of Trace Levels of Nickel(II) by Adsorptive Stripping Voltammetry Using a Disposable and Low-Cost Carbon Screen-Printed Electrode |
| title_sort | determination of trace levels of nickel ii by adsorptive stripping voltammetry using a disposable and low cost carbon screen printed electrode |
| topic | nickel dimethylglyoxime adsorptive stripping voltammetry carbon screen-printed electrode water samples |
| url | https://www.mdpi.com/2227-9040/9/5/94 |
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