ZnO nanoparticle-modified ionic liquid-carbon paste electrodefor voltammetric determination of folic acid in food and pharmaceutical samples

Taherkhani, Ali; Jamali, Tahoora; Hadadzadeh, Hassan; Karimi-Maleh, Hassan; Beitollahi, Hadi; Taghavi, Mehdi; Karimi, Fatemeh

doi:10.1007/s11581-013-0992-0

Cited by 102 publications

(25 citation statements)

References 44 publications

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“…Zinc oxide is a common metal oxide used in the electroanalysis of analytes. To date, many zinc oxide nanostructures have been utilized as electrochemical sensors, including nanoparticles, nanowires, nanorods, and nanosheets [21,22,23,24], but nanoflower-like zinc oxide is seldom used. In this paper, we describe a simple, rapid, and sensitive electrochemical method for the detection of SY using zinc oxide nanoflower (ZnONF) as sensing materials.…”

Section: Introductionmentioning

confidence: 99%

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Jiang

et al. 2017

Sensors

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Zinc oxide nanoflower (ZnONF) was synthesized by a simple process and was used to construct a highly sensitive electrochemical sensor for the detection of sunset yellow (SY). Due to the large surface area and high accumulation efficiency of ZnONF, the ZnONF-modified carbon paste electrode (ZnONF/CPE) showed a strong enhancement effect on the electrochemical oxidation of SY. The electrochemical behaviors of SY were investigated using voltammetry with the ZnONF-based sensor. The optimized parameters included the amount of ZnONF, the accumulation time, and the pH value. Under optimal conditions, the oxidation peak current was linearly proportional to SY concentration in the range of 0.50–10 μg/L and 10–70 μg/L, while the detection limit was 0.10 μg/L (signal-to-noise ratio = 3). The proposed method was used to determine the amount of SY in soft drinks with recoveries of 97.5%–103%, and the results were in good agreement with the results obtained by high-performance liquid chromatography.

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Section: Introductionmentioning

confidence: 99%

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Jiang

et al. 2017

Sensors

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“…Among various nanomaterials, zinc oxide (ZnO) nanoparticles quickly matured as a versatile functional material for several applications, such as chemical and biological sensors [21], solar energy conversion [22], photocatalysis [23], piezoelectric sensors [24], nanogenerator [25], and varistor [26]. These nanostructures possess high surface area to volume ratios and outstanding mechanical stabilities which strongly favor the design of sensors based on the ZnO nanomaterial [27] and make it a suitable candidate for the modification of electrodes [28].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical determination of levodopa in the presence of ascorbic acid by polyglycine/ZnO nanoparticles/multi-walled carbon nanotubes-modified carbon paste electrode

Afkhami

Kafrashi

Madrakian

2015

Ionics

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This work report on electrodeposition of polyglycine microparticles onto zinc oxide (ZnO) nanoparticles/multi-walled carbon nanotube-modified carbon paste electrode surface in order to construction new levodopa (L-dopa) electrochemical sensor. The prepared electrode used for sensitive and selective determination of L-dopa in the presence of ascorbic acid. The electrochemical response of L-dopa on this modified electrode was studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The effect of various experimental parameters including pH and scan rate on the voltammetric response of L-dopa was investigated. The results show that the process of oxidation of this compound is adsorption controlled. At the optimum conditions, the concentration of L-dopa was determined by differential pulse voltammetry, and a dynamic linear range of 5.0-500.0 μmol L −1 and detection limit of 0.08 μmol L −1 were obtained. The results of pharmaceutical and human urine samples' voltammetric analysis showed that using the proposed method, a precise and sensitive electrochemical determination of L-dopa is feasible.

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“…20,21 The use of ZnO nanoparticles in carbon paste electrodes is a promising approach to enhance the performance of electrochemical methods. 22,23 This study describes the development of a simple, reliable and sensitive square wave cathodic adsorptive stripping voltammetric method (SWCAdSV) based on ZnO nanoparticles modified carbon paste electrode (ZnO-NP-CPE) for the accurate and precise determination of MKST and its application in pharmaceutical preparations and biological fluids. -3 g of montelukast in 100 mL of methanol using a bath sonicator.…”

Section: Electroanalytical Characterization Of Montelukast Sodium Andmentioning

confidence: 99%

Electroanalytical Characterization of Montelukast Sodium and Its Voltammetric Determination in Pharmaceutical Dosage Form and Biological Fluids

Çölkesen¹,

Öztürk²,

Erden³

2015

Journal of the Brazilian Chemical Society

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The electrochemical properties of montelukast sodium (MKST) at zinc oxide nanoparticles modified carbon paste electrode were investigated by cyclic voltammetry and square wave voltammetry. All studies were based on the irreversible and adsorption-controlled electrochemical reduction signal of montelukast sodium at about -0.7 vs. Ag/AgCl at pH 2.3 in methanol-Britton-Robinson buffer mixture. This adsorptive character of the molecule was used to develop a novel, validated, rapid, selective and simple square wave cathodic adsorptive stripping voltammeric method for the direct determination of montelukast sodium in pharmaceutical and biological fluids without time-consuming steps prior to drug assay. Peak current of electrochemical reduction of montelukast sodium was found to vary linearly with the concentration in the range from 1.0 × 10 -8 to 1.28 × 10 -6 mol L -1 . In this method, limit of detection was found to be 7.7 × 10 -9 mol L -1 . The method was applied to determine the content of MKST tablet and spiked human serum.

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ZnO nanoparticle-modified ionic liquid-carbon paste electrodefor voltammetric determination of folic acid in food and pharmaceutical samples

Cited by 102 publications

References 44 publications

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

A Zinc Oxide Nanoflower-Based Electrochemical Sensor for Trace Detection of Sunset Yellow

Electrochemical determination of levodopa in the presence of ascorbic acid by polyglycine/ZnO nanoparticles/multi-walled carbon nanotubes-modified carbon paste electrode

Electroanalytical Characterization of Montelukast Sodium and Its Voltammetric Determination in Pharmaceutical Dosage Form and Biological Fluids

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