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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fthindawi:oai:hindawi.com:10.1155/2012/264035 2023-05-15T13:56:45+02:00 A Single Platinum Microelectrode for Identifying Soft Drink Samples Lígia Bueno Thiago R. L. C. Paixão 2012 https://doi.org/10.1155/2012/264035 en eng International Journal of Electrochemistry https://doi.org/10.1155/2012/264035 Copyright © 2012 Lígia Bueno and Thiago R. L. C. Paixão. Research Article 2012 fthindawi https://doi.org/10.1155/2012/264035 2019-05-26T00:00:47Z 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. Article in Journal/Newspaper Antarc* Antarctica Hindawi Publishing Corporation International Journal of Electrochemistry 2012 1 5 |
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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 in Journal/Newspaper |
author |
Lígia Bueno Thiago R. L. C. Paixão |
spellingShingle |
Lígia Bueno Thiago R. L. C. Paixão A Single Platinum Microelectrode for Identifying Soft Drink Samples |
author_facet |
Lígia Bueno Thiago R. L. C. Paixão |
author_sort |
Lígia Bueno |
title |
A Single Platinum Microelectrode for Identifying Soft Drink Samples |
title_short |
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_sort |
single platinum microelectrode for identifying soft drink samples |
publisher |
International Journal of Electrochemistry |
publishDate |
2012 |
url |
https://doi.org/10.1155/2012/264035 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
https://doi.org/10.1155/2012/264035 |
op_rights |
Copyright © 2012 Lígia Bueno and Thiago R. L. C. Paixão. |
op_doi |
https://doi.org/10.1155/2012/264035 |
container_title |
International Journal of Electrochemistry |
container_volume |
2012 |
container_start_page |
1 |
op_container_end_page |
5 |
_version_ |
1766264338661769216 |