Publication:
Electrochemical Determination of Uric Acid in Urine by Using Zeolite Imidazolate Framework-11 Modified Electrode
Electrochemical Determination of Uric Acid in Urine by Using Zeolite Imidazolate Framework-11 Modified Electrode
| datacite.subject.fos | oecd::Natural sciences | |
| dc.contributor.author | Tran Si Thanh | |
| dc.contributor.author | Phan Tu Qui | |
| dc.contributor.author | Nguyen Thi Thanh Tu | |
| dc.contributor.author | Tran Thanh Tam Toan | |
| dc.contributor.author | Tran Thi Bich Hoa | |
| dc.contributor.author | Le Van Thanh Son | |
| dc.contributor.author | Do Mai Nguyen | |
| dc.contributor.author | Tran Ngoc Tuyen | |
| dc.contributor.author | Dinh Quang Khieu | |
| dc.contributor.editor | Thanh-Danh Nguyen | |
| dc.date.accessioned | 2022-11-02T02:21:12Z | |
| dc.date.available | 2022-11-02T02:21:12Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | In the present article, the synthesis of zeolite imidazole framework-11 (ZIF-11) by ultrasonic-assisted hydrothermal process and its application as an electrode modifier for electrochemical determination of uric acid in urine are demonstrated. The obtained materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption/desorption isotherms. It was found that the ZIF-11 with rhombic dodecahedron topology and high surface area (1066m2.g-1) was synthesized in a certain temperature and found in around 25–40°C, and other crystalline phases of zinc benzimidazolate deferring from ZIF-11 phase were found in less 25°C or higher than 40 ° C. The ZIF-11 is stable in the pH range 6-10. The modification of glassy carbon electrode was performed with ZIF-67 using the drop-casting procedure. The present ZIF-11 modified electrode was employed to study the electrochemical behavior of uric acid (UA). UA oxidation is catalyzed by this electrode in aqueous buffer solution (pH7) with a decrease of 70mV in overpotential compared to glassy carbon electrode. With the differential pulse–anodic stripping voltammetry (DP-ASV) method, the oxidation current of UA versus its concentration shows good linearity in the range 20– 540μM (R = 0:998) with a detection limit of 0.48 μM (S/N = 3). The obtained ZIF-11 modified electrode was applied in the detection of UA content in urine samples, and satisfied results were obtained. | |
| dc.identifier.doi | 10.1155/2021/9914062 | |
| dc.identifier.uri | http://repository.vlu.edu.vn:443/handle/123456789/619 | |
| dc.language.iso | en_US | |
| dc.relation.ispartof | Journal of Nanomaterials | |
| dc.relation.issn | 1687-4129 | |
| dc.relation.issn | 1687-4110 | |
| dc.title | Electrochemical Determination of Uric Acid in Urine by Using Zeolite Imidazolate Framework-11 Modified Electrode | |
| dc.type | journal-article | |
| dspace.entity.type | Publication | |
| oaire.citation.volume | 2021 |