An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry
This paper describes a new, simple, and highly selective analytical technique for the detection of sulfur dioxide in wine, as a real sample with a relatively complicated matrix. The detection of the above analyte was based on the electrogeneration of iodine from iodide on a boron-doped diamond elect...
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MDPI AG
2023-08-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/16/12875 |
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| author | Eva Culková Zuzana Lukáčová-Chomisteková Renata Bellová Miroslav Rievaj Jarmila Švancarová-Laštincová Peter Tomčík |
| author_facet | Eva Culková Zuzana Lukáčová-Chomisteková Renata Bellová Miroslav Rievaj Jarmila Švancarová-Laštincová Peter Tomčík |
| author_sort | Eva Culková |
| collection | DOAJ |
| description | This paper describes a new, simple, and highly selective analytical technique for the detection of sulfur dioxide in wine, as a real sample with a relatively complicated matrix. The detection of the above analyte was based on the electrogeneration of iodine from iodide on a boron-doped diamond electrode, without modifications, in the presence of 0.1 mol dm<sup>−3</sup> HClO<sub>4</sub> as a supporting electrolyte. The electrogenerated iodine reacted with sulfur dioxide, forming iodide ions and sulfuric acid (i.e., a Bunsen reaction). The product of this reaction, the iodide ion, diffused back to the surface of the boron-doped diamond electrode and oxidized itself again. This chemical redox cycling enhanced the voltammetric response of the boron-doped diamond electrode. The selectivity of the determination was assured using NaOH and formaldehyde during sample preparation, and a blank was also measured and taken into account. The detection limit was estimated to be 10<sup>−6</sup>–10<sup>−7</sup> mol dm<sup>−3</sup>. However, the content of sulfur dioxide in wine is significantly higher, which can lead to more accurate and reliable results. |
| first_indexed | 2024-03-10T23:52:33Z |
| format | Article |
| id | doaj.art-9c4c6ff64a8a4685b7b0d41b5eb86093 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T23:52:33Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-9c4c6ff64a8a4685b7b0d41b5eb860932023-11-19T01:31:20ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-08-0124161287510.3390/ijms241612875An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction ElectrochemistryEva Culková0Zuzana Lukáčová-Chomisteková1Renata Bellová2Miroslav Rievaj3Jarmila Švancarová-Laštincová4Peter Tomčík5Electroanalytical Chemistry Laboratory, Department of Chemistry and Physics, Faculty of Education, Catholic University in Ružomberok, Hrabovská Cesta 1, SK-034 01 Ružomberok, SlovakiaElectroanalytical Chemistry Laboratory, Department of Chemistry and Physics, Faculty of Education, Catholic University in Ružomberok, Hrabovská Cesta 1, SK-034 01 Ružomberok, SlovakiaElectroanalytical Chemistry Laboratory, Department of Chemistry and Physics, Faculty of Education, Catholic University in Ružomberok, Hrabovská Cesta 1, SK-034 01 Ružomberok, SlovakiaElectroanalytical Chemistry Laboratory, Department of Chemistry and Physics, Faculty of Education, Catholic University in Ružomberok, Hrabovská Cesta 1, SK-034 01 Ružomberok, SlovakiaCentral Controlling & Testing Institute for Agriculture in Bratislava, Matúškova 21, SK-833 16 Bratislava, SlovakiaElectroanalytical Chemistry Laboratory, Department of Chemistry and Physics, Faculty of Education, Catholic University in Ružomberok, Hrabovská Cesta 1, SK-034 01 Ružomberok, SlovakiaThis paper describes a new, simple, and highly selective analytical technique for the detection of sulfur dioxide in wine, as a real sample with a relatively complicated matrix. The detection of the above analyte was based on the electrogeneration of iodine from iodide on a boron-doped diamond electrode, without modifications, in the presence of 0.1 mol dm<sup>−3</sup> HClO<sub>4</sub> as a supporting electrolyte. The electrogenerated iodine reacted with sulfur dioxide, forming iodide ions and sulfuric acid (i.e., a Bunsen reaction). The product of this reaction, the iodide ion, diffused back to the surface of the boron-doped diamond electrode and oxidized itself again. This chemical redox cycling enhanced the voltammetric response of the boron-doped diamond electrode. The selectivity of the determination was assured using NaOH and formaldehyde during sample preparation, and a blank was also measured and taken into account. The detection limit was estimated to be 10<sup>−6</sup>–10<sup>−7</sup> mol dm<sup>−3</sup>. However, the content of sulfur dioxide in wine is significantly higher, which can lead to more accurate and reliable results.https://www.mdpi.com/1422-0067/24/16/12875voltammetrysulfur dioxidewineiodideiodineboron-doped diamond |
| spellingShingle | Eva Culková Zuzana Lukáčová-Chomisteková Renata Bellová Miroslav Rievaj Jarmila Švancarová-Laštincová Peter Tomčík An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry International Journal of Molecular Sciences voltammetry sulfur dioxide wine iodide iodine boron-doped diamond |
| title | An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry |
| title_full | An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry |
| title_fullStr | An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry |
| title_full_unstemmed | An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry |
| title_short | An Interference-Free Voltammetric Method for the Detection of Sulfur Dioxide in Wine Based on a Boron-Doped Diamond Electrode and Reaction Electrochemistry |
| title_sort | interference free voltammetric method for the detection of sulfur dioxide in wine based on a boron doped diamond electrode and reaction electrochemistry |
| topic | voltammetry sulfur dioxide wine iodide iodine boron-doped diamond |
| url | https://www.mdpi.com/1422-0067/24/16/12875 |
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