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Determination of 5-Nitroindazole using Silver Solid Amalgam Electrode.
Authors: Nováková Kateřina | Navrátil Tomáš | Hrdlička Vojtěch | Vyskočil Vlastimil | Barek Jiří | Chýlková Jaromíra
Year: 2014
Type of publication: ostatní - článek ve sborníku
Name of source: 47th Heyrovsky discussion on electrochemistry of organic and bioactive compounds
Publisher name: Ústav fyzikální chemie Jaroslava Heyrovského AV ČR
Place: Praha
Page from-to: 56
Titles:
Language Name Abstract Keywords
eng Determination of 5-Nitroindazole using Silver Solid Amalgam Electrode. Nitro-group containing compounds have been frequently studied by electrochemical techniques. These are mostly based on the reduction of the nitro group at the aromatic or heterocyclic ring [1, 2]. The voltammetric behavior of 5-nitroindazole (5-NI) was investigated by differential pulse voltammetry (DPV) and cyclic voltammetry (CV). The mercury meniscus modified (m-AgSAE) and polished (p-AgSAE) silver solid amalgam electrodes (both of inner diameter 0.5 mm) [3, 4] were used as the working electrodes. Britton-Robinson buffer was used as the supporting electrolyte. The reaction mechanism was investigated using CV and elimination voltammetry with linear scan (EVLS). DPV with optimized working parameters was utilized for analysis of model solutions containing 5-NI. The limits of detection were calculated as 0.14 mol L for m-AgSAE and 0.47 mol L for p-AgSAE, respectively. The optimized proposed method was successfully applied in analysis of real water spiked by 5-NI.