A simple and fast method to detect freebase cocaine in artificial saliva by square wave voltammetry (SWV) using carbon paste electrode
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چکیده
منابع مشابه
Determination of Riboflavin by Nanocomposite Modified Carbon Paste Electrode in Biological Fluids Using Fast Fourier Transform Square Wave Voltammetry
Herein, fast Fourier transformation square-wave voltammetry (FFT-SWV) as a novel electrochemical determination technique was used to investigate the electrochemical behavior and determination of Riboflavin at the surface of a nanocomposite modified carbon paste electrode. The carbon paste electrode was modified by nanocomposite containing Samarium oxide (Sm2O3)/reduced gra...
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Um eletrodo de pasta de carbono modificado com o polímero poli(vinilpirrolidona) foi avaliado para o estudo eletroquímico e a determinação eletroanalítica da quercetina. Sobre este eletrodo, voltamogramas cíclicos da quercetina apresentaram três picos de oxidação localizados em +0,32, +0,78 e +1,04 V. A eletro-oxidação no primeiro pico conduz à formação da orto-quinona correspondente, a qual po...
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The foregone studies have shown that nicotinic acid cannot produce noticeable reductive signal at carbon-based electrodes without appropriate modification of the electrode. This is an obvious reason that mercury is known as the main electrode material for electro-reduction of nicotinic acid. In this study, it has been shown that it is possible to create a remarkable reduction signal for NA at a...
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conclusions the results of this study show that lh in different pharmaceutical preparations could be determined with good reliability. in addition, the results reveal that the equal numbers of electrons and protons are involved in the oxidation of lh and the irreversible oxidation of an analyte was performed via amine groups of lh molecule. background lidocaine hydrochloride (lh) is one of the ...
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Based on the adsorption of Fe(EDTA)- on a chitosan-coated glassy carbon electrode, a second-derivative square-wave voltammetry for the determination of the EDTA species in water samples was investigated. The measuring range of EDTA was from 6.0 x 10(-7) to 5.0 x 10(-5) mol/L with a correlation coefficient of 0.998 and a detection limit of 2.8 x 10(-7) mol/L. The relative standard deviation was ...
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ژورنال
عنوان ژورنال: Journal of Electrochemical Science and Engineering
سال: 2020
ISSN: 1847-9286
DOI: 10.5599/jese.849