Emad, Y., Ali, T., Mohamed, G., Hassan, M., Bastawy, A. (2024). A Highly Selective Potentiometric Sensor for Detection of Zn(II) in Petroleum Water Samples Using Carbon Paste Electrode Based on Molecular Imprinted Polymer. test, 67(9), 507-521. doi: 10.21608/ejchem.2024.247470.8869
Yassmin Emad; Tamer Awad Ali; Gehad Genidy Mohamed; Madiha Hassan; Abdel El-Fatah Bastawy. "A Highly Selective Potentiometric Sensor for Detection of Zn(II) in Petroleum Water Samples Using Carbon Paste Electrode Based on Molecular Imprinted Polymer". test, 67, 9, 2024, 507-521. doi: 10.21608/ejchem.2024.247470.8869
Emad, Y., Ali, T., Mohamed, G., Hassan, M., Bastawy, A. (2024). 'A Highly Selective Potentiometric Sensor for Detection of Zn(II) in Petroleum Water Samples Using Carbon Paste Electrode Based on Molecular Imprinted Polymer', test, 67(9), pp. 507-521. doi: 10.21608/ejchem.2024.247470.8869
Emad, Y., Ali, T., Mohamed, G., Hassan, M., Bastawy, A. A Highly Selective Potentiometric Sensor for Detection of Zn(II) in Petroleum Water Samples Using Carbon Paste Electrode Based on Molecular Imprinted Polymer. test, 2024; 67(9): 507-521. doi: 10.21608/ejchem.2024.247470.8869

A Highly Selective Potentiometric Sensor for Detection of Zn(II) in Petroleum Water Samples Using Carbon Paste Electrode Based on Molecular Imprinted Polymer

Egyptian Journal of Chemistry
Volume 67, Issue 9, September 2024, Pages 507-521    PDF (708.8 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2024.247470.8869
Authors
Yassmin Emad1; Tamer Awad Ali* 2; Gehad Genidy Mohamed3; Madiha Hassan4; Abdel El-Fatah Bastawy1
1Chemistry Department, Faculty of Science, Helwan University
2Egyptian Petroleum Research Institute (EPRI), 11727, Cairo, Egypt.
3Chemistry Department, Faculty of Science, Cairo University, 12613 Giza Egypt
4Chemistry, Faculty of Science, Helwan University
Abstract
For the purpose of determining the presence of zinc(II) in petroleum water samples, a molecular imprinted polymer (MIP) based modified carbon paste potentiometric method was described. Methacrylic acid monomers and ethylene glycol dimethacrylate were used in the polymerization process to create the MIP. The generated imprinted polymer was evaluated using flame atomic absorption spectrometry, Fourier transform infrared spectroscopy (FT-IR), and proton nuclear magnetic resonance (1H-NMR). It was then used as a sorbent for selective magnetic solid phase extraction of zinc(II) ion. Using MIP as a suitable neutral carrier, a label modified carbon paste electrode (MCPEs) that is highly selective to Zn(II) ions was created. For MCPEs (Sensors I and II), they demonstrated a linear concentration range from 1.0x10-7 to 1.0x10-1 mol L-1 with Nernstian slopes of 28.43±0.63 and 29.27±0.48 mV decade-1, respectively. The suggested electrodes were successful applied in determining the Zn(II) ion concentrations in water samples. The outcomes were comparable to those from atomic absorption spectroscopy (AAS) in actual spiked water samples.
Keywords
Chemically modified carbon paste sensor; Zn(II) determination; Imprinted molecular polymer; Potentiometric sensor; Petroleum water sample
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