Electrochemical Sensor Based on Multiwalled Carbon Nanotube, Alizarine Red S and Chitosan for Simultaneous Determination of Oxomemazine Hydrochloride, Paracetamol and Guaifenesin

Mohammed, Mona S.; Attia, Ali K.; Elwy, Hanan Mohamed

doi:10.1002/elan.201600311

Cited by 29 publications

(14 citation statements)

References 55 publications

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“…Carbon Paste Electrodes (CPE) were prepared using the procedure reported in our previous work . Accordingly, a few drops of paraffin oil mixed with graphite powder (0.5 g) are mixed until homogeneous using a pestle and mortar.…”

Section: Methodsmentioning

confidence: 99%

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Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

et al. 2017

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The electrochemical oxidation of Sotalol (SOT) based on Tetrazolium Blue (TB)/gold nanoparticles (GNPs)‐modified carbon paste electrodes (CPE) have been studied in the presence of sodium lauryl sulphate (SLS). Cyclic voltammetry (CV), differential pulse voltammetry (DPV), chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques have all been utilized within this study. GNPs and TB have a synergetic effect‐giving rise to highly improved electrochemical responses and provide an advantageous platform for the basis of an electrochemical sensor with excellent performance. The experimental parameters, electrodeposition time, pH and scan rate have all been examined and optimized. The sensing of SOT via DPV is found to exhibit a wide linear dynamic range of 1.0×10−7–7.5×10−4 M in pH 2. LOD and LOQ were calculated and found to correspond to 2.5×10−8 M and 8.3×10−8 M, respectively. The suggested sensor has been used successfully for SOT determination in pharmaceutical samples and human urine as real samples. Satisfactory recoveries of analyte from these samples are demonstrated indicating that the suggested sensor is highly suitable for clinical analysis, quality control and a routine determination of SOT in pharmaceutical formulations.

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Section: Methodsmentioning

confidence: 99%

“…The modification of electrochemical sensors enhance their ability for trace determination of pharmaceutical and biological samples . Modified carbon paste sensors have received attention as they are low cost, exhibit low non‐Faradic currents, are easily fabricated and modified and exhibit good analytical performance[21–24].…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

et al. 2017

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“…Different analytical procedures are reported for the determination of GUA, mainly spectrophotometry [2], GC, and LC [3][4][5][6]. The electrochemical techniques have been found more selective, less costly, and less time-consuming and widely used for the determination of different analytes [7][8][9][10][11][12], including GUA [13,14]. The fluorescent methods [15] are also popular due to operational simplicity, sensitivity, and selectivity [16,17].…”

Section: Introductionmentioning

confidence: 99%

A new molecularly imprinted polymer for selective extraction and pre‐concentration of guaifenesin in different samples: Adsorption studies and kinetic modeling

Iranmanesh

Jahani²,

Nezhadali

et al. 2020

J of Separation Science

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This paper describes the synthesis of a molecularly imprinted polymer by chemical oxidation of pyrrole as the functional monomer, and at the presence of guaifenesin as the template. The prepared polymer was used as adsorbent in molecularly imprinted solid‐phase extraction followed by spectrophotometric determination. Different parameters in the solid‐phase extraction including sample pH, adsorbent weight, washing solution, and elution solvent were studied to determine optimum conditions for isolation and enrichment of guaifenesin. The results showed guaifenesin was quantitatively adsorbed on the molecularly imprinted polymer at pH 6.0 and completely eluted with an ethanol–water solution (50% v/v). An enrichment factor of four with satisfactory recoveries (87.0–95.0%) was obtained. The solid‐phase extraction columns could be used for up to six consecutive elution‐loading cycles without significant decreases in the analyte recoveries. The method had a dynamic range of 3.0 × 10−6–1.5 × 10−4 mol/L with a limit of detection and limit of quantification of 1.4×10−6 and 4.5×10−6 mol/L, respectively. The proposed procedure was used for the extraction and determination of guaifenesin in different pharmaceutical formulations, with satisfying results being achieved.

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“…For instance, Zhou et al reported a label-free determination of lead ions by decorated gold nanoparticles on the surface of ordered mesoporous carbon. [38][39][40][41] However, the paraffin oil used as the conventional organic liquid is a non-conductive material, which to some extent attenuates the electrochemical performance of the CPE. 25 In addition, Yang et al utilized a Prussian blue/ ordered mesoporous carbon composite as a conductive support for the preparation of a metolcarb imprinted sensor.…”

Section: Introductionmentioning

confidence: 99%

A highly defective mesoporous carbon – ionic liquid paste electrode toward the sensitive electrochemical determination of rutin

2017

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In this paper, a highly defective mesoporous carbon (DMC) and room temperature ionic liquid 1-butyl-3methylimidazolium hexafluorophosphate (BMIM$PF 6 ) were applied to fabricate a novel carbon paste electrode for the electrochemical sensing of rutin. The electrochemical properties of rutin on the modified electrode (IL/DMC/PE) were carefully investigated by cyclic voltammetry, electrochemical impedance spectroscopy and chronocoulometry. Electrochemical parameters of rutin on the surface of the modified electrode were determined with the electron transfer coefficient (a) as 0.53, the electron transfer number (n) as 2, the heterogeneous electron transfer rate constant (k s ) as 37.1 s À1 , the diffusion coefficient as 1.34 Â 10 À4 cm 2 s À1 and saturated absorption capacity as 10.9 nmol cm À2 . Under the optimal conditions, rutin could be detected in the concentration range from 0.008 mmol L À1 to 4.0 mmol L À1 with the detection limit as 1.17 nmol L À1 (S/N ¼ 3) by square-wave voltammetry. The proposed sensor was further applied successfully for the determination of rutin content in some real samples, including Ruta graveolens extract, pharmaceutical tablets and orange juice.

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Electrochemical Sensor Based on Multiwalled Carbon Nanotube, Alizarine Red S and Chitosan for Simultaneous Determination of Oxomemazine Hydrochloride, Paracetamol and Guaifenesin

Cited by 29 publications

References 55 publications

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

A new molecularly imprinted polymer for selective extraction and pre‐concentration of guaifenesin in different samples: Adsorption studies and kinetic modeling

A highly defective mesoporous carbon – ionic liquid paste electrode toward the sensitive electrochemical determination of rutin

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