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3 results on '"Feyzi, Bahareh"'

2. Electrochemical Sensing Platform Based on Graphene Oxide‐chitosan for Simultaneous Determination of some Antihypertensive Drugs.

Author

Nabizadeh, Hassan, Feyzi, Bahareh, Ahmad Salarian, Amir, Reza Abtahi, Seyed, Mohammadi, Ali, and Hami, Zahra

Subjects
*ANTIHYPERTENSIVE agents, *GRAPHENE, *HYDROCHLOROTHIAZIDE, *DRUG tablets, *VALSARTAN, *NANOCOMPOSITE materials
Abstract

The development of selective and simple methods for the determination of different analytes is of great interest. This is the first time to show the applicability of graphene oxide‐chitosan (GO‐CS) nanocomposite for designing an electrochemical nanosensor for determination of Amlodipine, Valsartan, and Hydrochlorothiazide, simultaneously. Differential pulse voltammetrics current of AML, HCT, and VAL increased linearly in the ranges of 0.1–110, 0.1–110, and 1–230 μM with LOD of 5.5×10−2, 3.5×10−2 and 8.6×10−2 μM, respectively. Finally, GO‐CS/GCE was used for the detection of these drugs in commercial tablets and compared with the reference method (HPLC). [ABSTRACT FROM AUTHOR]

Published
2023
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3. Electrochemical Synthesis of Aminoquinones through Oxidative Coupling of 4-tert-Butylcatechol and Benzenamines

Author

Nematollahi, Davood, Feyzi, Bahareh, Salehzadeh, Hamid, and Varmaghani, Fahimeh

Abstract

The electrochemical oxidation of 4-tert-butylcatechol in the presence of a series of benzenamines has been evaluated in aqueous solution by means of cyclic voltammetry and controlled-potential coulometry. Results indicate that 4-tert-butylcatechol undergoes a two-electron oxidation at the surface of electrode to 4-tert-butylquinone followed by Michael addition reaction with benzenamine. This study has established the formation of aminoquinones as final products via the ECE mechanism. This procedure would be a good candidate for synthesis of aminoquinones in one-pot process, green conditions and good purity.

Published
2014

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