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Your search keyword '"Abdelilah Chtaini"' showing total 2 results
Start Over Author "Abdelilah Chtaini" Publisher hindawi limited
2 results on '"Abdelilah Chtaini"'

1. Biopolymer-Modified Carbon Paste Electrode for the Electrochemical Detection of Pb(II) in Water

Author

Ousama Ifguis, Abdelaziz Moutcine, Charaf Laghlimi, Younes Ziat, Rachid Bouhdadi, Abdelilah Chtaini, Amine Moubarik, and Mohamed Mbarki

Subjects
Analytical chemistry, QD71-142
Abstract

During the present study, biopolymer lignin was extracted, in particular, from sugar beet pulp (molasses) from the Tadla region (224 km from Marrakech, Morocco). The lignin was characterized by infrared spectroscopy (FTIR) and thermogravimetric TG/DTA analysis and then used as a modifier to enhance the electroanalytical detection of heavy metal ion traces. The performance of the lignin/CPE sensor to detect lead (II) was studied by cyclic voltammetry (CV) and square-wave voltammetry in 0.3 mol L−1 NaCl. With optimized experimental parameters, the lignin/CPE sensor developed has a minimum detection limit of 2.252.10−11 M for Pb (II). The proposed working electrode has been successfully applied for the coanalysis of Pb (II) in tap water with good results.

Published
2022
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2. Simultaneous Electrochemical Detection of Pb and Cd by Carbon Paste Electrodes Modified by Activated Clay

Author

Niraka Blaise, Hambate Gomdje Valéry, Raja Maallah, Mohamed Oubaouz, Bakary Tigana Djonse Justin, Edwin Andrew Ofudje, and Abdelilah Chtaini

Subjects
QD71-142, Article Subject, General Chemical Engineering, Instrumentation, Research Article, Computer Science Applications, Analytical Chemistry
Abstract

Calcinated and acidified clay modified carbon graphite electrode was deployed in the simultaneous evaluation of traces of Pb2+ and Cd2+ in solution. After 5 minutes of accumulation in the circuit, the sensitivity of the electrode was evaluated in a solution of Na2SO4 (0.1 M) by square wave voltammetry on the one hand with Pb (II) and on the other hand with Cd (II). Several experimental conditions such as the composition of the carbon clay paste, the effect of preconcentration time, the sweeping speed, concentration effect, media pH, and interference ionic response to the electrochemical response of the working electrode were examined. It was observed that, after 5 minutes of preconcentration, detection limits of 0.15513 μmol·L−1 and 0.24227 μmol·L−1 were obtained for Pb2+ and Cd2+ in the electrolyte solution and 0.08438 μmol·L−1 and 0.46522 μmol·L−1, respectively, when tap water was used. The detection was effective by square wave voltammetry with a more intense current density with respect to lead.

Published
2022
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