Zobrazeno 1 - 10
of 274
pro vyhledávání: '"Reza Ojani"'
Publikováno v:
Food Chemistry: X, Vol 19, Iss , Pp 100857- (2023)
The present research is the first report on the application of Keggin-type phosphotungstic acid/polyvinylidene fluoride membrane. This compound as a simple, cost-effective and novel sorbent was used for the extraction and pre-concentration of two org
Externí odkaz:
https://doaj.org/article/9d2b29e318a74d77afd7abfe18251c39
Autor:
Volodymyr Tkach, Yana G Ivanushko, Svitlana M. Lukanova, Lyudmyla V. Romaniv, Iryna Kukovs’ka, Sílvio C. de Oliveira, Reza Ojani, Fauze J. Anaissi, Petro I. Yagodynets
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 37, Iss 2, Pp 111-116 (2018)
The possibility of hydroxylamine electrochemical determination over a CoO(OH)-modified electrode, accompanied by complex-formation, has been studied from the theoretical point of view. The correspondent mathematical model has been developed and analy
Externí odkaz:
https://doaj.org/article/3953607c0b0b433ea242d4e9edf6ec8d
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 8, Iss 3, Pp 154-158 (2016)
The mathematical model, describing the intercalation of aromatic fragments to the silicone surface by means of electrochemical reduction of respective diazo-salts, was represented and analyzed, by linear stability theory and bifurcation analysis. A t
Externí odkaz:
https://doaj.org/article/109b305933474e0d8497c25d92c0fce2
Autor:
Volodymyr Valentynovych Tkach, Reza Ojani, Michel Osvaldo Galeano Espínola, Montserrat Blanes, Olga Yelenich, Petro Yagodynets´
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 8, Iss 4, Pp 226-231 (2016)
A mechanism was suggested for the electroanalytic function of triazolic ferrocene derivatives in the electrochemical detection of pesticides and drugs, with the emphasis on the behavior of triazole ring. The suggested mechanism was mathematically rep
Externí odkaz:
https://doaj.org/article/ad3cd315dfa249b28fb01694bcef378d
Autor:
Volodymyr Valentynovych Tkach, Vasyl´ Vasylyovych Nechyporuk, Petro Ivanovych Yagodynets´, Olena Ihorivna Aksimentyeva, Ana Sofia Rodrigues Conde, Reza Ojani
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 8, Iss 2, Pp 102-107 (2016)
The transition of conducting polymer from insoluble to the soluble state by chemical and electrochemical way, experimentally observed, gains its mathematical representation by means of the developed model, which was described and analyzed by means of
Externí odkaz:
https://doaj.org/article/27134213539c404da7654a152ac87e4a
Autor:
Volodymyr Valentynovych Tkach, Bahaddurghatta Kumara Swamy, Reza Ojani, Montserrat Blanes, Petro Yagodynets´
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 7, Iss 1, Pp 1-4 (2015)
For the electroanalytical work of glassy carbon electrode, modified by polyalizarine, a mechanism, confirmed by experimental observations, has been proposed. This mechanism is also mathematically studied by means of linear stability theory and bifurc
Externí odkaz:
https://doaj.org/article/f51cfd3af3674ea29b5480079ece7676
Publikováno v:
Analytical and Bioanalytical Chemistry Research, Vol 1, Iss 2, Pp 92-98 (2014)
The electrochemistry of banana tissues on a carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) is presented. Cyclic voltammetry is applied to investigate the direct electrochemistry of banana tissues i.e. a source of polyphen
Externí odkaz:
https://doaj.org/article/e166a01ab42745d3a2e484c0933ec485
Autor:
Volodymyr Valentynovych Tkach, Reza Ojani, Vasyl Vasylyovych Nechyporuk, Petro Ivanovych Yagodynets´
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 6, Iss 3, Pp 142-146 (2014)
The electroanalytic function of copper(II) oxide nanoparticles, disposed over the glassy carbon electrode, in the electrochemical detection of hydrazine in strongly basic media gets its phenomenological mechanism. This mechanism, based on experimenta
Externí odkaz:
https://doaj.org/article/80fc400a2d0546f095ee4c837a39fa0a
Publikováno v:
Current Chemistry Letters, Vol 3, Iss 1, Pp 37-42 (2014)
Ferrocene and their derivatives are well-known redox active materials and were extensively used by construction of modified electrodes for the design of electrochemical sensors and biosensors. Substituent derivatization of ferrocene offers the prospe
Externí odkaz:
https://doaj.org/article/71656b199cf14d9eb96c64902f134bcf
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 22, Iss 2, Pp 173-182 (2008)
The electrochemical behaviour of L-cysteic acid was studied at the surface of 1-[4-(ferrocenyl-ethynyl)phenyl]-1-ethanone modified carbon paste electrode (4FEPEMCPE) in aqueous media using cyclic voltammetry and double step potential chronoamperometr
Externí odkaz:
https://doaj.org/article/5e7d521052d84e9eb5a448e559cb3cc2