Developing a Sensor for the Simultaneous Determination of Dopamine, Acetaminophen and Tryptophan in Pharmaceutical Samples Using a Multi-Walled Carbon Nanotube and Oxadiazole Modified Glassy Carbon Electrode

Construction of a New Sensor with Copper(II) Complex Anchored in Calcium Phosphate Intercalated with m-Aminobenzoic Acid and Their Application in Determination of Dopamine

“…This was verified by using glassy carbon electrode in presence of DA solution. Similar behavior was also checked in others systems [27]. DA electrochemical oxidation has been studied mostly on CPEs [28,29,30] and the complete effect matches to a two-electron process, followed by two-proton process, as shown in (5); the reaction denotes the oxidation of DA into DA o-quinone (DAQ) [31].…”

A glassy carbon electrode modified with porous gold nanosheets for simultaneous determination of dopamine and acetaminophen

“…Besides, it has wide applications in osteoarthritis and ovarian cancer therapy [6]. Nevertheless, its surplus will induce toxic metabolite accumulation, causing acute hepatic necrosis [7]. Additionally, AA is a vital vitamin in human diet and very popular in foodstuffs for its antioxidant property, which can be applied to prevent and treat common cold, mental illness, infertility, cancer, and AIDS [8,9].…”

Developing a screen-printed graphite–polyurethane composite electrode modified with gold nanoparticles for the voltammetric determination of dopamine

“…DPV voltammograms (not presented) were obtained using 1.0 mmol L À1 dopamine solution in 0.10 mol L À1 phosphate buffer (pH 7.0) in the potential interval between À0.15 V and 0.30 V (vs. pseudo Ag/AgCl), as suggested in previous reports. 56,57 The scan rate and pulse amplitude were optimized using a factorial planning 2 n (n ¼ number of variables studied) based on a multivariate calibration. The tested scan rates were 5 mV s À1 and 10 mV s À1 , and the tested pulse amplitudes were 25 mV and 50 mV.…”