Analytical and Bioanalytical Electrochemistry is an international scientific journal published online by the Center of Excellence in Electrochemistry at the University of Tehran, Tehran, Iran. The journal was published quarterly from 2009 to 2011, bimonthly from 2011 to 2018, and has been published in at least eight issues per year since 2018. Analytical and Bioanalytical Electrochemistry - 17 9 2025 12 01 QSPR-based Machine Learning Model for the Prediction of Corrosion Inhibition of Mild Steel in an Acid Medium using Quinoxaline Derivatives 771 788 738911 10.22034/abec.2025.738911 EN J. Saranya Department of Chemistry, PSG College of Arts and Science, Coimbatore, Tamil Nadu, India Y. Jeevan Nagendra Kumar Department of Information Technology, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, Telangana, India V. P. Radha Department of Chemistry, Dr. N.G.P. Institute of Technology, Anna University, Coimbatore-641048, Tamil Nadu, India Y. Ram Lohit Pranay Department of Computer Science and Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu, Indi M. Amulya Department of Information Technology, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, Telangana, India M. Bhavana Department of Information Technology, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, Telangana, India F. Benhibae Higher Institute of Nursing Professions and Health Techniques of Agadir, Annex Guelmim, Agadir, Morocco Abdelkader Zarrouk Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment LS3MN2E, CERNE2D, Faculty of Sciences, Mohammed V University in Rabat, Morocco 0000-0002-5495-2125 Journal Article 2025 07 11 Corrosion inhibitors are widely used to reduce metal degradation, although toxicity and experimental screening costs remain important concerns. In this study, a quantitative structure–property relationship (QSPR) machine-learning framework was evaluated for predicting the corrosion inhibition efficiency of quinoxaline derivatives for mild steel in 1 N sulfuric acid. The supplied modelling dataset contained 15 compounds and 11 density-functional-theory-derived quantum chemical descriptors. A descriptor-selection procedure based on simulated annealing was used to identify electronegativity (χ), LUMO energy (ELUMO), fraction of electrons transferred (ΔN), and energy gap (ΔE) as the most informative descriptor subset. Seven regression algorithms—linear regression, Lasso, Ridge, Elastic Net, decision tree, random forest, and gradient boosting—were compared. To address predictive validation explicitly, the data were divided reproducibly into 12 training compounds (80%) and 3 independent test compounds (20%) using random state = 42. All preprocessing and model fitting were performed using the training set, and final predictive statistics were calculated only on the held-out test set. The independent test results showed limited generalization because of the very small sample size; the lowest test MAE was obtained by linear regression (MAE = 4.48%, MSE = 21.14, R2 = −0.70). These results indicate that the selected electronic descriptors are mechanistically informative, but a larger chemical dataset is required before the QSPR models can be considered externally validated for routine prediction.

https://www.abechem.com/article_738911_f775a5a4d917c394d18298bd1a984ec3.pdf

Analytical and Bioanalytical Electrochemistry is an international scientific journal published online by the Center of Excellence in Electrochemistry at the University of Tehran, Tehran, Iran. The journal was published quarterly from 2009 to 2011, bimonthly from 2011 to 2018, and has been published in at least eight issues per year since 2018. Analytical and Bioanalytical Electrochemistry - 17 9 2025 12 01 Nanocomposite-based Electrochemical Sensor for the Quantification of Totarol in Tetraclinis Articulata Extract 789 802 738912 10.22034/abec.2025.738912 EN Loubna Kabiri Laboratory of Engineering and Applied Technologies, School of Technology, Beni Mellal, Morocco 0009-0002-7843-1938 Omar Anor Laboratory of Engineering and Applied Technologies, School of Technology, Beni Mellal, Morocco Sofia Kerouad Laboratory of Engineering and Applied Technologies, School of Technology, Beni Mellal, Morocco 0009-0006-7993-0236 Issam Forsal Laboratory of Engineering and Applied Technologies, School of Technology, Beni Mellal, Morocco 0000-0003-2769-8499 Mohammed Ellait Laboratory of Engineering and Applied Technologies, School of Technology, Beni Mellal, Morocco Younes Ziat Engineering and Applied Physics Laboratory (EAPL), Superior School of Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco Journal Article 2025 07 22 Totarol, a bioactive diterpenoid well known for its potent biological activities, requires precise determination in plant matrices for pharmacological and quality control purposes. However, classical analytical techniques are limited by high costs, complex protocols, and environmental concerns, requiring the development of faster, more sensitive, and greener alternatives. This work presents an innovative carbon paste electrode (CPE) incorporating zinc oxide (ZnO) and magnesium ferrite (MgFe₂O₄) nanoparticles was designed to enable the electrochemical quantification of Totarol in Tetraclinis articulata (TA) extract. The electrochemical behavior of Totarol was studied using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and square wave voltammetry (SWV). The interaction between the both of nanoparticles and Totarol was characterized using scanning electron microscopy (SEM). The ZnO:MgFe₂O₄-modified CPE demonstrated remarkable sensitivity towards Totarol, with a low LOD of 1.18 µM and excellent linearity (R² = 0.989) over a concentration range of 2.0 to 11.4 mM. The developed sensor enabled the accurate determination of Totarol in the studied plant extract, with a quantified concentration of 0.125 mM. These promising results reveal the potential of the proposed electrode as a simple, efficient, and reliable electrochemical platform for the rapid analysis of bioactive compounds in complex natural matrices.

https://www.abechem.com/article_738912_2f5f4495db6a232b1f971c5e1d7d06cb.pdf

Analytical and Bioanalytical Electrochemistry is an international scientific journal published online by the Center of Excellence in Electrochemistry at the University of Tehran, Tehran, Iran. The journal was published quarterly from 2009 to 2011, bimonthly from 2011 to 2018, and has been published in at least eight issues per year since 2018. Analytical and Bioanalytical Electrochemistry - 17 9 2025 12 01 Duplex Coatings of Nanoplates ZnAl2O4 on γ-Al₂O₃ for Improved Corrosion Resistance of Aluminum in Marine Environment 803 823 738932 10.22034/abec.2025.738932 EN Nawal Boukmouche Laboratory of the Interactions Materials-Environment (LIME), Jijel University, Jijel 18000, Algeria Faculty of Mechanical Engineering and Process Engineering, Department of Chemical and Cryogenic Engineering, University of Science and Technology Houari Boumediene (USTHB), Algiers, Algeria 0009-0004-3729-7634 Lamia Bouchama Faculty of Technology, Department of Renewable Energy, Blida 1 University, Algeria Laboratory of Energy Processes and Nanotechnology, Faculty of Sciences, Blida 1 University, Algeria Chemical Engineering Laboratory, Department of Industrial Chemistry, Blida 1 University, Algeria Rachid Benghanem Faculty of Mechanical Engineering and Process Engineering, Department of Materials Science, University of Science and Technology Houari Boumediene (USTHB), Algiers, Algeria Journal Article 2025 08 21 The improvement of anticorrosion properties in hybrid structures is currently a promising area of research due to their potential for multifunctional applications. This paper evaluates the corrosion behavior of ZnAl2O4/γ-Al₂O₃ duplex coatings, which were created by electrodepositing a nanostructured ZnO thin film onto nanoporous anodic alumina (AAO). The AAO was synthesized using two electrochemical anodization processes: single-step anodizing (SSA) and two-step anodizing (TSA). ZnAl₂O₄ was produced using an applied electric field of (-1.5 V). Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were employed to evaluate the corrosion behavior in a 3.5 wt.% NaCl solution.The successful deposition of zinc aluminate on AAO was confirmed through additional characterization techniques included X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and glow discharge optical emission spectroscopy (GDOES). scanning electron microscopy observations revealed a uniform network of ZnAl2O4nanoplates on the AAO substrate. Regarding corrosion properties, the measurements show that the ZnAl2O4/γ-Al₂O₃ coatings produced through the TSA process achieve a polarization resistance of 650 kΩ.cm2, compared to 95 kΩ.cm2 for those prepared by the SSA method. Overall, these findings suggest that ZnAl2O4/γ-Al₂O₃ duplex coatings have excellent potential as corrosion-resistant coatings for advanced applications.

https://www.abechem.com/article_738932_5a75a28ee6296f24acee21a2d082cb60.pdf

https://www.abechem.com/article_739011_f5e2f1d75198a42300f18703dd107918.pdf

https://www.abechem.com/article_739012_1313925c4dd7e4619334d695f60d20d8.pdf

Analytical and Bioanalytical Electrochemistry is an international scientific journal published online by the Center of Excellence in Electrochemistry at the University of Tehran, Tehran, Iran. The journal was published quarterly from 2009 to 2011, bimonthly from 2011 to 2018, and has been published in at least eight issues per year since 2018. Analytical and Bioanalytical Electrochemistry - 17 9 2025 12 01 Mechanism Investigation and Electrochemical Assay of Dextromethorphan based on (CuO-CNPs) Composite 854 865 739013 10.22034/abec.2025.739013 EN Masoumeh Ghalkhani Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Lavizan, P.O. Box 1678815811, Tehran, Iran 0000-0001-9246-1805 Farzaneh Rasi Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Lavizan, P.O. Box 1678815811, Tehran, Iran Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran Susan Sadeghi Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran Rüstem Keçili Department of Medical Services and Techniques, Yunus Emre Vocational School of Health Services, Anadolu University, 26470 Eskişehir, Türkiye Journal Article 2025 11 06 A novel type of modified electrode was developed to elucidate how dextromethorphan (DM) undergoes oxidation and to measure it with very high sensitivity using voltammetry. To make the sensor, a mixture containing copper oxide and carbon nanoparticles (CuO/CNPs) was prepared and then deposited as a thin layer on the surface of a glassy carbon electrode (GCE). The CuO nanoparticles were synthesized via a straightforward and environmentally friendly hydrothermal method. Comprehensive characterization using scanning electron microscopy and electrochemical impedance spectroscopy confirmed the successful fabrication and enhanced properties of the CuO/CNPs/GCE. The synergistic combination of the large surface area of the CNPs and the superior electrocatalytic activity of the CuO NPs resulted in a remarkable amplification of the DM oxidation signal. Compared to a bare GCE, the modified electrode showed more than 30 times higher peak current, and the oxidation overpotential was reduced by 70 mV, which means the reaction happens more easily. After carefully adjusting the experimental conditions, the way DM oxidizes at CuO/CNPs/GCE was examined. The sensor turned out to be very effective for measuring DM, with a linear response in the concentration range of 0.07-20.0 µM and a detection limit as low as 53 nM. To see if it works in real-life situations, the CuO/CNPs/GCE was also used to measure DM in commercial pharmaceutical products. The results were accurate and reliable, showing that this method can be useful for practical analysis.

https://www.abechem.com/article_739013_370a94de1961b98b7eda3dfb1f08cbe1.pdf