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Use of Copper Solid Amalgam Electrode for Determination of Triazolic Fungicide Tebuconazole
Authors: Nováková Kateřina | Navrátil Tomáš | Jaklová Dytrtová Jana | Chýlková Jaromíra
Year: 2012
Type of publication: článek ve sborníku
Name of source: Moderní elektrochemické metody XXXII
Publisher name: BEST Servis
Place: Ústí nad Labem
Page from-to: 87-92
Titles:
Language Name Abstract Keywords
cze Využití měděné pevné amalgámové elektrody pro stanovení Triazolic fungicidu Tebuconazole S použitím nově vyvinuté meniskové měděné amalgámové elektrody (vnitřní průměr 1.5 mm) bylo objasněno voltametrické chování fungicidu tebukonazolu s použitím diferenční pulzní voltametrie (DPV) a cyklické voltametrie (CV). Reakční mechanismus byl studován s pomocí CV a eliminační voltametrie s lineárním skenem (EVLS). tebuconazole, diferenciální pulzní voltametrie, cyklická voltametrie
eng Use of Copper Solid Amalgam Electrode for Determination of Triazolic Fungicide Tebuconazole With the use of the newly developed mercury meniscus-modified copper solid amalgam electrode (inner diameter 1.5 mm), the voltammetric behaviour of fungicide tebuconazole was researched by differential pulse voltammetry (DPV) and cyclic voltammetry (CV). Applying CV and elimination voltammetry with linear scan (EVLS), the reaction mechanism was investigated. The optimum conditions for DPV determination of this triazolic fungicide were identified in Britton-Robinson buffer/methanol (1:1, v/v) of pH 6.3. DPV with optimized parameters (E in = +400 mV, E acc = +400 mV vs. Ag/AgCl/3M KCl, scan rate 20 mV s -1) was used for determination of tebuconazole in analyzed solutions. Application the prolonged time (60 s), the limit of detection 2·10 -7 mol L -1 was reached. The applicability of the developed method was verified on the analysis of the real soil solution sample. tebuconazole, copper solid amalgam electrode, fungicide, DPV, CV, EVLS

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