Ca10(PO4)6(OH)2-modified carbon-paste electrode for the determination of trace lead(II) by square-wave voltammetry

Mhammedi, M.A. El; Achak, M.; Chtaini, Abdelilah

doi:10.1016/j.jhazmat.2008.03.057

Cited by 69 publications

(41 citation statements)

References 35 publications

(41 reference statements)

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“…The presence of these metal ions in the environment in larger concentration is mainly due to the increased human activity in various industrial processes like metallurgical, catalytic, polymer, dye, and fertilizer industries. Because of their high toxicity and prolonged exposure, even at trace-level concentration, these metal ions can cause severe problems in human and aquatic systems [2]. Lead and cadmium have acute and chronic effects on human health.…”

Section: Introductionmentioning

confidence: 99%

Amino-calixarene-modified graphitic carbon as a novel electrochemical interface for simultaneous measurement of lead and cadmium ions at picomolar level

Adarakatti

Malingappa

2016

J Solid State Electrochem

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Amino-calixarene-derivatized graphitic carbon electrode has been used in the simultaneous quantification of lead and cadmium ions at picomolar level. The graphitic carbon has been chemically modified using amino-calixarene as an indicator molecule through microwave irradiation, and it has been characterized by NMR, mass, and Fourier transform infrared spectroscopy (FTIR) techniques. The proposed sensor has shown linearity in the concentration range 10-120 pM with detection limits of 3.3 and 3.5 pM for lead and cadmium, respectively. The proposed sensor has been successfully applied to quantify lead and cadmium levels in battery effluents, alloy materials, and sewage water sample matrices. The results obtained by the proposed sensor are in agreement with the results of the standard protocols.

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Section: Introductionmentioning

confidence: 99%

Amino-calixarene-modified graphitic carbon as a novel electrochemical interface for simultaneous measurement of lead and cadmium ions at picomolar level

Adarakatti

Malingappa

2016

J Solid State Electrochem

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“…The cyclic voltammograms (CVs) of the organic molecular modified carbon paste electrode (MO-CPE) [14] and carbon paste electrode (CPE) were recorded in the supporting electrolyte. In cycles between -1.5 and 1.5 V (Figure 2).…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Sensor Based on 2-Benzimidazolethiole Modified Carbon Paste Electrode for Lead Chelation Therapy

Chtaini¹

2016

J Biomol Res Ther

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“…El Mohammedi et al have evaluated the analytical performance of nano HAp-CPE for the detection of trace lead (II), paraquat and 4-NP. They found that HAp can effectively improve the electrochemical response due to its excellent adsorption property 16,17 . So, nano HAp should be a suitable electrode modified material for pollution determination.…”

Section: S88mentioning

confidence: 99%

Electrochemical Studies of Carbonated Hydroxyapatite/CHS Nanocomposite

2013

Chem Sci Trans

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Carbonated hydroxyapatite /CHS nanocomposites of varying composition for biomaterial applications have been synthesized. The Carbonated hydroxyapatite /CHS nanocomposite materials were characterized by XRD, FTIR, FESEM, EDAX, HRTEM and XPS. Carbonated hydroxyapatite (CHAp) nanorod embedded composite was prepared using chitosan (CHS) as a matrix with different weight percentages (wt %). The results indicated that the size and crystallinity of CHAp nano particles decreases with increase in CHS concentration in the composite. FESEM confirms the presence of CHAp nanorod crystals in CHS matrix. Cyclic voltammograms (CVs) were recorded to evaluate the electrocatalytic behaviors of the modified electrode towards the oxidation of 4-NP in the potential range of 0 to +1.0 V. A glassy carbon electrode was modified with carbonated hydroxyapatite nanopowder (CHAp-NP) and characterized in terms of electrochemical oxidation of 4-nitrophenol (4-NP) via cyclic voltammetry. The catalytic reaction facilitates electron transfer between 4-NP and the modified electrode, as a result the electrochemical oxidation of 4-NP becomes easier. The reason for this is that the CHAp-CHS 80 can act as a promoter to increase the rate of electron transfer, lower the overpotential of 4-NP at the bare electrode, and the anodic peak shifts less positive potential. Thus, it is clear that CHAp-CHS 80 modified GCE can be successfully used for the determination of organic pollutant.

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Ca10(PO4)6(OH)2-modified carbon-paste electrode for the determination of trace lead(II) by square-wave voltammetry

Cited by 69 publications

References 35 publications

Amino-calixarene-modified graphitic carbon as a novel electrochemical interface for simultaneous measurement of lead and cadmium ions at picomolar level

Amino-calixarene-modified graphitic carbon as a novel electrochemical interface for simultaneous measurement of lead and cadmium ions at picomolar level

Electrochemical Sensor Based on 2-Benzimidazolethiole Modified Carbon Paste Electrode for Lead Chelation Therapy

Electrochemical Studies of Carbonated Hydroxyapatite/CHS Nanocomposite

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