Electrochemical sensing and simultaneous determination of ascorbic acid, dopamine and uric acid at nickel nanoparticles/poly (1,2-diaminoanthraquinone) modified electrode
| Autor: | Khalid Mahmoud Hassan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Ternary numeral system
chemistry.chemical_element 02 engineering and technology General Chemistry Glassy carbon 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Ascorbic acid 01 natural sciences 0104 chemical sciences Nickel chemistry Electrode Cyclic voltammetry 0210 nano-technology Ternary operation Nuclear chemistry |
| Zdroj: | Journal of the Iranian Chemical Society. 15:1007-1014 |
| ISSN: | 1735-2428 1735-207X |
| DOI: | 10.1007/s13738-018-1297-z |
| Popis: | A highly sensitive sensor based on Ni nanoparticles/poly (1,2-diaminoanthraquinone) modified electrode was fabricated at glassy carbon (GC) electrode (Ni/PDAAQ@GC ME) using cyclic voltammetry technique. The incorporation of nickel (II) ions nanoparticles (Ni NPs) followed by anodic polarization process was achieved. Surface morphologies of both PDAAQ@GC ME and Ni/PDAAQ@GC MEs were studied by scanning electron microscope. Ni/PDAAQ@GC ME was tested for simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid (UA) by square wave voltammetry technique. The ME showed excellent electrocatalytic activity toward electrooxidation of these biomolecules in their single, binary and ternary systems in alkaline 0.1 M NaOH solutions. Experiment revealed that the low detection limits (LOD) for AA, DA and UA were 0.11, 0.072 and 1.2 µM in single system, respectively, and 0.069, 0.29 and 0.12 µM in ternary system, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink