A Single Platinum Microelectrode for Identifying Soft Drink Samples
Cyclic voltammograms recorded with a single platinum microelectrode were used along with a non-supervised pattern recognition, namely, Principal Component Analysis, to conduct a qualitative analysis of sixteen different brands of carbonated soft drinks (Kuat, Soda Antarctica, H2OH!, Sprite 2.0, Guar...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/264035 |
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| author | Lígia Bueno Thiago R. L. C. Paixão |
| author_facet | Lígia Bueno Thiago R. L. C. Paixão |
| author_sort | Lígia Bueno |
| collection | DOAJ |
| description | Cyclic voltammograms recorded with a single platinum microelectrode were used along with a non-supervised pattern recognition, namely, Principal Component Analysis, to conduct a qualitative analysis of sixteen different brands of carbonated soft drinks (Kuat, Soda Antarctica, H2OH!, Sprite 2.0, Guarana Antarctica, Guarana Antarctica Zero, Coca-Cola, Coca-Cola Zero, Coca-Cola Plus, Pepsi, Pepsi Light, Pepsi Twist, Pepsi Twist Light, Pepsi Twist 3, Schin Cola, and Classic Dillar’s). In this analysis, soft drink samples were not subjected to pre-treatment. Good differentiation among all the analysed soft drinks was achieved using the voltammetric data. An analysis of the loading plots shows that the potentials of −0.65 V, −0.4 V, 0.4 V, and 0.750 V facilitated the discrimination process. The electrochemical processes related to this potential are the reduction of hydrogen ions and inhibition of the platinum oxidation by the caffeine adsorption on the electrode surface. Additionally, the single platinum microelectrode was useful for the quality control of the soft drink samples, as it helped to identify the time at which the beverage was opened. |
| format | Article |
| id | doaj-art-bddafc6be0634e898d48dca59ad17ae3 |
| institution | Kabale University |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-bddafc6be0634e898d48dca59ad17ae32025-02-03T01:01:14ZengWileyInternational Journal of Electrochemistry2090-35292090-35372012-01-01201210.1155/2012/264035264035A Single Platinum Microelectrode for Identifying Soft Drink SamplesLígia Bueno0Thiago R. L. C. Paixão1Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210-170, BrazilCentro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210-170, BrazilCyclic voltammograms recorded with a single platinum microelectrode were used along with a non-supervised pattern recognition, namely, Principal Component Analysis, to conduct a qualitative analysis of sixteen different brands of carbonated soft drinks (Kuat, Soda Antarctica, H2OH!, Sprite 2.0, Guarana Antarctica, Guarana Antarctica Zero, Coca-Cola, Coca-Cola Zero, Coca-Cola Plus, Pepsi, Pepsi Light, Pepsi Twist, Pepsi Twist Light, Pepsi Twist 3, Schin Cola, and Classic Dillar’s). In this analysis, soft drink samples were not subjected to pre-treatment. Good differentiation among all the analysed soft drinks was achieved using the voltammetric data. An analysis of the loading plots shows that the potentials of −0.65 V, −0.4 V, 0.4 V, and 0.750 V facilitated the discrimination process. The electrochemical processes related to this potential are the reduction of hydrogen ions and inhibition of the platinum oxidation by the caffeine adsorption on the electrode surface. Additionally, the single platinum microelectrode was useful for the quality control of the soft drink samples, as it helped to identify the time at which the beverage was opened.http://dx.doi.org/10.1155/2012/264035 |
| spellingShingle | Lígia Bueno Thiago R. L. C. Paixão A Single Platinum Microelectrode for Identifying Soft Drink Samples International Journal of Electrochemistry |
| title | A Single Platinum Microelectrode for Identifying Soft Drink Samples |
| title_full | A Single Platinum Microelectrode for Identifying Soft Drink Samples |
| title_fullStr | A Single Platinum Microelectrode for Identifying Soft Drink Samples |
| title_full_unstemmed | A Single Platinum Microelectrode for Identifying Soft Drink Samples |
| title_short | A Single Platinum Microelectrode for Identifying Soft Drink Samples |
| title_sort | single platinum microelectrode for identifying soft drink samples |
| url | http://dx.doi.org/10.1155/2012/264035 |
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