The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk
Gold deposit immobilized on the surface of glassy carbon electrodes (GCE) and included in the polymer film of polyvinylpyrrolidone (Au-PVPr) shows electrocatalytic properties toward tetracycline oxidation. The catalytic effect observed at the GCE modified by gold deposit is expressed in a multiple i...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Kazan Federal University
2019-03-01
|
| Series: | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
| Subjects: | |
| Online Access: | https://kpfu.ru/uz-eng-ns-2019-1-2.html |
| _version_ | 1797813365409579008 |
|---|---|
| author | L.G. Shaidarova A.V. Gedmina V.N. Syutkina I.A. Chelnokova H.C. Budnikov |
| author_facet | L.G. Shaidarova A.V. Gedmina V.N. Syutkina I.A. Chelnokova H.C. Budnikov |
| author_sort | L.G. Shaidarova |
| collection | DOAJ |
| description | Gold deposit immobilized on the surface of glassy carbon electrodes (GCE) and included in the polymer film of polyvinylpyrrolidone (Au-PVPr) shows electrocatalytic properties toward tetracycline oxidation. The catalytic effect observed at the GCE modified by gold deposit is expressed in a multiple increase of the current of antibiotic oxidation and in a decrease of the potential on 250 mV in comparison with the GCE. A two-fold increase in the oxidation current of tetracycline has been recorded on the GCE coated by the PVPr film with gold deposit (Au-PVPr-GCE) in comparison with its oxidation at the Au-GCE. The working conditions for the immobilization of the Au-PVPr composite on the GCE have been found. A method for voltammetric determination of tetracycline on the Au-PVPr-GCE has been proposed. Linear dependence of the current at this electrode on the tetracycline concentration has been observed in the range from 1?10–7 to 1?10–3 mol?L–1. The developed voltammetric method has been tested in determination of the tetracycline content in milk. |
| first_indexed | 2024-03-13T07:50:54Z |
| format | Article |
| id | doaj.art-3e6a055f37854405814553a831008aee |
| institution | Directory Open Access Journal |
| issn | 2542-064X 2500-218X |
| language | English |
| last_indexed | 2024-03-13T07:50:54Z |
| publishDate | 2019-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
| spelling | doaj.art-3e6a055f37854405814553a831008aee2023-06-02T15:22:09ZengKazan Federal UniversityUčënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki2542-064X2500-218X2019-03-011611203010.26907/2542-064X.2019.1.20-30The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milkL.G. Shaidarova0A.V. Gedmina1V.N. Syutkina2I.A. Chelnokova3H.C. Budnikov4Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaGold deposit immobilized on the surface of glassy carbon electrodes (GCE) and included in the polymer film of polyvinylpyrrolidone (Au-PVPr) shows electrocatalytic properties toward tetracycline oxidation. The catalytic effect observed at the GCE modified by gold deposit is expressed in a multiple increase of the current of antibiotic oxidation and in a decrease of the potential on 250 mV in comparison with the GCE. A two-fold increase in the oxidation current of tetracycline has been recorded on the GCE coated by the PVPr film with gold deposit (Au-PVPr-GCE) in comparison with its oxidation at the Au-GCE. The working conditions for the immobilization of the Au-PVPr composite on the GCE have been found. A method for voltammetric determination of tetracycline on the Au-PVPr-GCE has been proposed. Linear dependence of the current at this electrode on the tetracycline concentration has been observed in the range from 1?10–7 to 1?10–3 mol?L–1. The developed voltammetric method has been tested in determination of the tetracycline content in milk.https://kpfu.ru/uz-eng-ns-2019-1-2.htmlchemically modified electrodespolyvinylpyrrolidone film with gold depositelectrocatalysisvoltammetric determination of tetracycline |
| spellingShingle | L.G. Shaidarova A.V. Gedmina V.N. Syutkina I.A. Chelnokova H.C. Budnikov The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki chemically modified electrodes polyvinylpyrrolidone film with gold deposit electrocatalysis voltammetric determination of tetracycline |
| title | The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| title_full | The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| title_fullStr | The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| title_full_unstemmed | The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| title_short | The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| title_sort | use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk |
| topic | chemically modified electrodes polyvinylpyrrolidone film with gold deposit electrocatalysis voltammetric determination of tetracycline |
| url | https://kpfu.ru/uz-eng-ns-2019-1-2.html |
| work_keys_str_mv | AT lgshaidarova theuseofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT avgedmina theuseofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT vnsyutkina theuseofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT iachelnokova theuseofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT hcbudnikov theuseofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT lgshaidarova useofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT avgedmina useofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT vnsyutkina useofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT iachelnokova useofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk AT hcbudnikov useofanelectrodemodifiedbypolyvinylpyrrolidonefilmwithagolddepositforvoltammetricdeterminationoftetracyclineinmilk |