Voltammetric determination of chloramphenicol in milk at electrochemically activated carbon fibre microelectrodes

Agüı́, L.; Guzmán, Alicia; Yáñez‐Sedeño, Paloma; Pingarrón, José M.

doi:10.1016/s0003-2670(02)00245-3

Cited by 79 publications

(8 citation statements)

References 24 publications

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“…The peak potential didn't shift at GCE. While plotting log current VS log scan rate, the slope value closes to the theoretical value of 0.5 refers to an ideal reaction to the diffusion process, when it closes to the theoretical value of 1.0, it refers to an ideal reaction to the adsorption process [34,35,36]. However, the intermediate value of the slope is observed, suggesting a mixed adsorption-diffusion controlled process [20].…”

Section: The Effect Of Voltammetric Parameterssupporting

confidence: 55%

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

El-Kady¹

2019

SJAC

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New voltammetric methods are introduced for the determination of a skeletal muscle relaxant namely; mephenesin (Mep) in its pure form with the application in the pharmaceutical preparation and biological fluids. Three voltammetric methods namely; cyclic voltammetry (CV), differential pulse voltammetry (DPV) and square wave voltammetry (SWV) using pencil graphite electrode (PGE) and glassy carbon electrode (GCE) were used. Voltammetric behavior of Mep was investigated in Britton Robinson (BR) buffer as electrolyte in pH range 2-10. CV produced one irreversible anodic peak revealing oxidation reaction in pH 6 as maximum pH value at 1.33 and 1.36 V using PGE and GCE, respectively. At PGE, DPV and SWV were investigated and linearity ranges were 18.02-119.07 and 18.02-70.0 µg/mL with correlation coefficient 0.9997 and 0.9995, LOD values were found to be 0.113 and 0.059 µg/mL, respectively. At GCE, linearity ranges were 9.05-44.39 and 4.54-65.78 µg/mL with correlation coefficient 0.9996 and 0.9999, LOD values were 0.553 and 0.865 µg/mL at DPV and SWV, respectively. The proposed methods were applied with good recovery in pharmaceutical preparation, human mother milk and urine. They were validated and revealed accurate and precise results.

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Section: The Effect Of Voltammetric Parameterssupporting

confidence: 55%

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

El-Kady¹

2019

SJAC

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“…The ideal diffusion‐controlled process has the slope value closes to the theoretical value of 0.5, but when the slope value approach to 1.0 the reaction become ideally adsorption controlled process . The slope value is 0.67 of DSV.2HCl at ZrO 2 ‐MSPE electrode, which is intermediate value attributed to mixing diffusion‐adsorption controlled reaction [31] which related to adsorption of thin layer electrolysis at electrode surface .…”

Section: Resultsmentioning

confidence: 99%

A Zirconium Oxide Nanoparticle Modified Screen‐printed Electrode for Anodic Stripping Determination of Daclatasvir Dihydrochloride

2019

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A novel, sensitive and rapid voltammetric method applied for daclatasvir dihydrochloride (DSV.2HCl) detection in raw material, human plasma and urine using square wave voltammetry at a nano‐screen printed electrode (SPE) based on synthesized zirconium oxide nanoparticles (ZrO2 NPs). The attention to zirconium oxide nanoparticle syntheses arises from its likely use in making an electrode material in the electroanalytical process. Anodic stripping square wave voltammetric peaks have been recorded at the optimum conditions of drug solution as pH, scan rate, accumulation time and accumulation potential. Morphology of the used nanoparticles has been performed by scanning electron microscope (SEM) and transmission microscope (TEM). ZrO2 NPs were applied to screen printed electrode (ZrO2‐MSPE) giving a new sensor to detect the DSV.2HCl drug. ZrO2 NPs were tested for their electroactivity in improving electrodes sensitivity. The modified electrode has been used for the analysis of DSV.2HCl in spiked serum, spiked urine and pharmaceutical formulation.

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“…Hitherto, various kinds of methods have been utilized for the detection of CAP such as liquid chromatography, liquid chromatography‐mass spectrometry, gas chromatography, chemiluminescence and capillary zone electrophoresis . Compare with the aforementioned methods, the electrochemical method is very simple, inexpensive, rapid and sensitive analytical method . However, the poor catalytic activity, less sensitivity and selectivity of the unmodified electrode affects the electrochemical performance of the sensor.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Carbon Black Nanospheres Hybrid with MoS₂ Nanoclusters for the Effective Electrocatalytic Reduction of Chloramphenicol

et al. 2018

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Synthesis of nanomaterials using cheap and highly efficient material is an important aspect of nanotechnology. In this present work, we have used the carbon black (CB) as a highly conductive and inexpensive carbonaceous material for the fabrication of the electrochemical sensor. However, the poor dispersion in water obstructs the usage of CB in electrochemical sensor and biosensor applications. Hence, the CB was functionalized by simple reflux method and the functionalized CB (f‐CB) nanospheres hybrids with hydrothermally synthesized MoS2 nanoclusters by simple ultrasonication process. In addition, the various suitable spectrometric techniques used to probe the surface morphology and chemical modification of the prepared materials. The prepared MoS2 and f‐CB nanohybrids (f‐CB/MoS2) applied for the electrocatalytic reduction of toxic chloramphenicol (CAP). Fascinatingly, the f‐CB/MoS2 modified electrode showed a competitive electrocatalytic performance comparing with other modified electrodes. At the optimized condition, the sensor exhibited the LOD about 0.002 μM, wider linear range 0.015 to 1370 μM with the sensitivity of 3400 μA μM−1 cm−2 for the determination of CAP. Moreover, the practical viability of the sensor was exploited in milk powder and honey samples.

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Voltammetric determination of chloramphenicol in milk at electrochemically activated carbon fibre microelectrodes

Cited by 79 publications

References 24 publications

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

A Zirconium Oxide Nanoparticle Modified Screen‐printed Electrode for Anodic Stripping Determination of Daclatasvir Dihydrochloride

Functionalized Carbon Black Nanospheres Hybrid with MoS₂ Nanoclusters for the Effective Electrocatalytic Reduction of Chloramphenicol

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Voltammetric determination of chloramphenicol in milk at electrochemically activated carbon fibre microelectrodes

Cited by 79 publications

References 24 publications

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

Comparative Voltammetric Behavior and Determination of Mephenesin in Pure Form, Pharmaceuticals and Biological Fluids at Pencil Graphite and Glassy Carbon Electrodes

A Zirconium Oxide Nanoparticle Modified Screen‐printed Electrode for Anodic Stripping Determination of Daclatasvir Dihydrochloride

Functionalized Carbon Black Nanospheres Hybrid with MoS2 Nanoclusters for the Effective Electrocatalytic Reduction of Chloramphenicol

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Product

Resources

About

Functionalized Carbon Black Nanospheres Hybrid with MoS₂ Nanoclusters for the Effective Electrocatalytic Reduction of Chloramphenicol