| Autor: |
Ali Ghaffarinead, Mehdi Ghaedrahmati, Razieh Salahandish |
| Jazyk: |
English<br />Persian |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
شیمی کاربردی روز, Vol 14, Iss 51, Pp 103-120 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2981-2437 |
| DOI: |
10.22075/chem.2019.12831.1257 |
| Popis: |
L-Cysine (L-Cys) is one of the most important amino acids in the body and plays an important role in the immune system. In this study, the platinum electrode was modified by a Ni-Al double-layer hydroxide film (Pt /NiAlLDH) and used to measure L-Cys. Pt/NiAlLDH showed good catalytic activity for the oxidation of L-Cys. On this electrode, the oxidation of L-Cys occurs at a potential very lower than an unmodified platinum electrode, which occurred at about 500 mV. The catalytic oxidation peak currents depend on the L-Cys concentration with a logarithmic linear relation in the concentration range of 1×10-7 to 2.5×10-4 M and an experimental detection limit of 1×10-7 M. The proposed electrode was used for determination of L-Cys in a drug sample. This modified electrode is cheap and is quickly and easily prepared. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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