Electrochemical Characterization and Voltammetric Determination of Benzoyl Derivatives of Phenobarbital Using Glassy Carbon Electrode

Olga Mezentseva, Galina Slepchenko, Victor Filimonov, Elena Mikheeva, Galina Arbit

Результат исследования: Материалы для журналаСтатья


The electrochemical behavior of a number of benzoyl barbiturates was studied using a glassy carbon electrode (GCE). The kinetics of the electrode process is determined, the contribution of physical adsorption to the electrochemical process is estimated, and the mechanism of the possible electrochemical reaction is proposed. It is shown that the electrochemical reduction potentials of benzoyl phenobarbital derivatives are determined by the LUMO energies, calculated by the B3LYP 6-311+G method. It is established that the process is quasi-reversible, complicated by adverse reactions. The influence of halogen type and its position in the benzoyl residue of the studied substances on the analytical signal is established. The effective values of the dissociation constants of various forms of benzoyl derivatives were calculated using the example of halonal, for which the values 3.16 ⋅ 10−8 and 6.31 ⋅ 10−12, respectively, were found.

Язык оригиналаАнглийский
Страницы (с... по...)1494-1500
Количество страниц7
Номер выпуска8
Статус публикацииОпубликовано - 1 янв 2019


ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry