Novel Ce-incorporated zeolite modified-carbon paste electrode for simultaneous trace electroanalysis of lead and cadmium

Kawde, Abdel‐Nasser; Ismail, Azzura; Al‐Betar, Abdul‐Rahman; Muraza, Oki

doi:10.1016/j.micromeso.2017.02.008

Cited by 24 publications

(6 citation statements)

References 49 publications

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“…Conventional methods like atomic absorption spectrometry(AAS) [21,22], inductively coupled plasma-mass spectrometry(ICP-MS) [23], flame atomic absorption spectrometry (FAAS) [24,25] and Electrochemical Assays [26,27] are generally used for the detection of metal ions like Cu 2+ . Although these traditional methods are responsive, accurate and selective but concurrently they require special sampling techniques, operating manual, professional handling, time consuming, cost expansive and sometime inconclusive.…”

Section: Introductionmentioning

confidence: 99%

A fluorescent colorimetric vanillin di-Schiff base chemosensor for detection of Cu(ii) and isolation of trinuclear Cu(ii)–dihydrazide

2022

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Section: Introductionmentioning

confidence: 99%

A fluorescent colorimetric vanillin di-Schiff base chemosensor for detection of Cu(ii) and isolation of trinuclear Cu(ii)–dihydrazide

2022

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“…These extra‐framework cations have considerable freedom of movement and can be easily replaced by other ones, providing ion‐exchange properties of zeolites. The ability to undergo the ion‐exchange process creates the possibility to incorporate various electroactive species into zeolite structure in order to develop novel electrochemical sensors . The molar ratio of silicon to aluminum atoms (Si/Al) in the zeolites framework affects their surface properties, which change from hydrophobic to hydrophilic.…”

Section: Introductionmentioning

confidence: 99%

The Mn‐zeolite/Graphite Modified Glassy Carbon Electrode: Fabrication, Characterization and Analytical Applications

2020

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In this work, low‐cost and environmentally friendly natural zeolite exchanged with Mn2+ cations was used for the first time to modify the glassy carbon electrode with the aim to obtain a fast and simple sensor for voltammetric determination of paracetamol (PAR). The Mn‐zeolite/graphite modified glassy carbon electrode (MnZG−GCE) was prepared by evaporation of solvent from dispersion of the zeolite/graphite mixture with the polymer in acetone. The electrochemical characteristics of MnZG−GCE were conducted by electrochemical impedance spectroscopy and cyclic voltammetry. Compared with graphite modified GCE (G−GCE), MnZG−GCE exhibited better electrochemical parameters, which confirms the superiority of applying zeolite in the proposed sensor. The optimization of the pH‐value of supporting electrolyte and instrumental parameters were carried out. The peak current was proportional to the concentration of PAR in a phosphate buffer saline of pH 6.0 in the range from 0.029 to 0.69 mg L−1 (R=0.9997) with limit of detection of 8.8 μg L−1. Finally, the proposed electrode was successfully applied to determine the paracetamol in pharmaceutical formulation and certified reference materials. The satisfactory recoveries, which ranged from 89.2 to 102.7 %, were obtained for all studied samples. It confirmed the attractiveness of relatively inexpensive, easy to fabricate and non‐toxic MnZG−GCE in determination of PAR in complicated matrixes.

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“…A number of acute and chronic illnesses such as emphysema, hypertension, and skeletal malformation in the fetus have been attributed to the harmful properties of cadmium [1]. Another frequently encountered toxic contaminant in the environment is lead due to its application for car batteries, paints, and gasoline [2]. In detail, lead can disturb the metabolism of calcium and other critical nutrients by competing for binding sites [3].…”

Section: Introductionmentioning

confidence: 99%

Platinum Nanoflower-Modified Electrode as a Sensitive Sensor for Simultaneous Detection of Lead and Cadmium at Trace Levels

Nguyen

Cao

Pham

et al. 2019

Journal of Chemistry

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We introduce the fabrication and electrochemical application of platinum nanoflower-modified glassy carbon electrode (PtNFs/GCE) for the trace level determination of lead and cadmium using differential pulse anodic stripping voltammetry (DPASV). The modified electrodes have been characterized by EDX, XRD, SEM, and AFM techniques to confirm chemical and physical properties. The effect of potential electrodeposition on the properties of the electrode was investigated. At −0.2 V of potential, platinum developed with a nanoflower shape and dispersed densely all over the glassy carbon surface. In this condition, the highest of lead and cadmium electrochemical signals was clearly observed. The sensor showed wide linearity in the concentration range of 1–100 μg·L−1 with detection limits of 0.408 μg·L−1 and 0.453 μg·L−1 for lead and cadmium ions, respectively. The produced electrodes have good reproducibility with relative standard deviations of 4.65% for lead and 4.36% for cadmium ions. The results demonstrate that this simple, stable, and sensitive sensor is suitable for the simultaneous electrochemical determination of Pb2+ and Cd2+ at trace levels.

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Novel Ce-incorporated zeolite modified-carbon paste electrode for simultaneous trace electroanalysis of lead and cadmium

Cited by 24 publications

References 49 publications

A fluorescent colorimetric vanillin di-Schiff base chemosensor for detection of Cu(ii) and isolation of trinuclear Cu(ii)–dihydrazide

A fluorescent colorimetric vanillin di-Schiff base chemosensor for detection of Cu(ii) and isolation of trinuclear Cu(ii)–dihydrazide

The Mn‐zeolite/Graphite Modified Glassy Carbon Electrode: Fabrication, Characterization and Analytical Applications

Platinum Nanoflower-Modified Electrode as a Sensitive Sensor for Simultaneous Detection of Lead and Cadmium at Trace Levels

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