Differential pulse voltammetric simultaneous determination of acetaminophen and ascorbic acid using single-walled carbon nanotube-modified carbon–ceramic electrode

Habibi, Biuck; Jahanbakhshi, Mojtaba; Pournaghi-Azar, M.H.

doi:10.1016/j.ab.2011.01.005

Cited by 129 publications

(60 citation statements)

References 52 publications

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“…It shows the increasing in real surface area of the modified electrode. In our previous works [51,52], the real surface area of the SWCNT modified electrode was estimated by cyclic voltammetery using Fe(CN) 6 3−/4− as probe ions. The real surface area was calculated according to the Randles-Sevcik equation.…”

Section: Resultsmentioning

confidence: 99%

“…Prior to modification, the CCE was prepared according to the literature [49] and our previous works [51,52] and mechanically polished with polishing paper and ultrasonicated in doubled distilled water for 3 min. SWCNT/AgNPs aqueous solutions (15 μL) were dropped on the surface of polished CCE.…”

Section: Preparation and Modification Cce With Swcnt/agnpsmentioning

confidence: 99%

“…H 2 O 2 in honey is produced by the action of glucose oxidase on glucose when honey is diluted. Upon dilution with water, the concentration of H 2 O 2 is increased with time and a maximum is reached in 50 min and then decraced [51]. Therefore 25.0 g of honey sample was weighed and mixed with distilled water and diluted to 50.0 mL in a calibrated flask.…”

Section: Application Of the Swcnt/agnps Modified Electrodementioning

confidence: 99%

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Voltammetric and amperometric determination of hydrogen peroxide using a carbon-ceramic electrode modified with a nanohybrid composite made from single-walled carbon nanotubes and silver nanoparticles

2012

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A nanohybrid composite material was prepared from single-walled carbon nanotubes and silver nanoparticles, and used to fabricate a modified carbon-ceramic electrode. The preparation of the composite is facile and efficient. The nanohybrid composite deposited on the carbon-ceramic electrode was characterized by X-ray diffraction and cyclic voltammetry. The new electrode displays favorable electrocatalytic ability towards hydrogen peroxide (H 2 O 2 ) and can be used to electrocatalytically reduce this species. Under the optimum conditions, the current measured during hydrodynamic amperometry is linearly related to the concentration of H 2 O 2 over the concentration range from 0.01 to 8 mM, with a detection limit of 2×10 −7 M at a signal-to-noise ratio of 3 and sensitivity of 3.23 μA/mM. The electrode exhibits good reproducibility, long-term stability and negligible interference by dopamine, uric acid, and other important biological compounds. The electrode was successfully applied to the determination of H 2 O 2 in honey samples, and the recovery was 101.2%.

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Section: Resultsmentioning

confidence: 99%

Section: Preparation and Modification Cce With Swcnt/agnpsmentioning

confidence: 99%

Section: Application Of the Swcnt/agnps Modified Electrodementioning

confidence: 99%

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Voltammetric and amperometric determination of hydrogen peroxide using a carbon-ceramic electrode modified with a nanohybrid composite made from single-walled carbon nanotubes and silver nanoparticles

2012

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“…Hence the probable electrooxidation mechanisms for both the drugs are proposed as given in Scheme 2, which are based on earlier works [27,28].…”

Section: Plausible Mechanismmentioning

confidence: 99%

Simultaneous electrochemical determination of acetaminophen and metoclopramide at electrochemically pre-treated disposable graphite pencil electrode

Patil

Pattar

Nandibewoor

2016

J. Electrochem. Sci. Eng.

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“…Moreover, some of them are not suitable for the detection of APAP at very low concentrations. This has generated the development of electrochemical methods recognized to be inexpensive, sensitive, and selective [24][25][26][27]. The resort to electrochemical methods for the determination of biological compounds in environmental analysis is also because they are reagentless and require simple operational procedures [28].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the degradation of acetaminophen by the filamentous fungus Scedosporium dehoogii using carbon-based modified electrodes

et al. 2016

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The nonpathogenic filamentous fungus Scedosporium dehoogii was used for the first time to study the electrochemical biodegradation of acetaminophen (APAP). A carbon fiber microelectrode (CFME) modified by nickel tetrasulfonated phthalocyanine (p-NiTSPc) and a carbon paste electrode (CPE) modified with coffee husks (CH) were prepared to follow the kinetics of APAP biodegradation. The electrochemical response of APAP at both electrodes was studied by cyclic voltammetry and square wave voltammetry. p-NiTSPc-CFME was suitable to measure high concentrations of APAP, whereas CH-CPE gave rise to high current densities but was subject to the passivation phenomenon. p-NiTSPc-CFME was then successfully applied as a sensor to describe the kinetics of APAP biodegradation: this was found to be of first order with a kinetics constant of 0.11 day(-1) (at 25 °C) and a half-life of 6.30 days. APAP biodegradation by the fungus did not lead to the formation of p-aminophenol (PAP) and hydroquinone (HQ) that are carcinogenic, mutagenic, and reprotoxic (CMR). Graphical Abstract The kinetics of APAP biodegradation, followed by a poly-nickel tetrasulfonated phtalocyanine modified carbon fiber microelectrode.

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Differential pulse voltammetric simultaneous determination of acetaminophen and ascorbic acid using single-walled carbon nanotube-modified carbon–ceramic electrode

Cited by 129 publications

References 52 publications

Voltammetric and amperometric determination of hydrogen peroxide using a carbon-ceramic electrode modified with a nanohybrid composite made from single-walled carbon nanotubes and silver nanoparticles

Voltammetric and amperometric determination of hydrogen peroxide using a carbon-ceramic electrode modified with a nanohybrid composite made from single-walled carbon nanotubes and silver nanoparticles

Simultaneous electrochemical determination of acetaminophen and metoclopramide at electrochemically pre-treated disposable graphite pencil electrode

Evaluation of the degradation of acetaminophen by the filamentous fungus Scedosporium dehoogii using carbon-based modified electrodes

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