A study of the electrochemical behavior of methomyl on a gold electrode in a neutral electrolyte | Zendy

Andjelka Tomašević | Zendy; Milka Avramov-Ivić | Zendy; Slobodan Petrović | Zendy; Mića Jovanović | Zendy; Dušan Mijin | Zendy

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A study of the electrochemical behavior of methomyl on a gold electrode in a neutral electrolyte

Author(s) -

Andjelka Tomašević,

Milka Avramov-Ivić,

Slobodan Petrović,

Mića Jovanović,

Dušan Mijin

Publication year - 2009

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0905573t

Subject(s) - methomyl , electrolyte , electrochemistry , chemistry , electrode , supporting electrolyte , analytical chemistry (journal) , cyclic voltammetry , inorganic chemistry , voltammetry , chromatography , pesticide , agronomy , biology

A gold electrode was used for the qualitative and quantitative electro- chemical determination of analytical methomyl in a neutral electrolyte (0.050 M NaHCO3) using cyclic linear sweep voltammetry. In the potential range from -800 mV vs. SCE to 1000 mV vs. SCE the analytical methomyl was quantitatively determined in the concentration range 4.0-16 mg L-1. In the po- tential range from -1300 mV vs. SCE to 1300 mV vs. SCE, methomyl was qualitatively determined by two anodic and four cathodic reactions. Cycling the potential in this range for 150 min caused the degradation of the molecule, which was confirmed by HPLC analysis. On the other hand, technical methomyl exhi- bited an inhibition of the gold electrode surface due to the impurities.

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