| Autor: |
Tarasov Aleksey, Stozhko Natalia, Bukharinova Maria |
| Jazyk: |
English<br />French |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
BIO Web of Conferences, Vol 76, p 05004 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2117-4458 |
| DOI: |
10.1051/bioconf/20237605004 |
| Popis: |
A potentiometric sensor system (PSS) was developed to assess antioxidant activity (AOA) using the potassium hexacyanoferrates ([Fe(CN)6]3–/4–) mediator system. The screen-printed indicator electrode was made of carbon ink modified with multi-walled carbon nanotubes (MWCNTs). The screen-printed silver electrode was potentiostatically modified with a silver chloride/ferricyanide precipitate and served as a reference electrode. The resulting PSS based on modified screen-printed electrodes was tested in the analysis of antioxidants and beverages. Beverage analysis results obtained using PSS and the Folin-Ciocalteu spectrophotometric method have a high positive correlation (r = 0.97, p = 0.002). The proposed PSS can be recommended for the analysis of pharmaceutical, cosmetic and clinical samples. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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