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Analytical and Bioanalytical Electrochemistry، جلد ۱۶، شماره ۴، صفحات ۳۳۱-۳۴۳
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عنوان انگلیسی Symmetric and Asymmetric Copper Selective Electrodes based on N-(benzothiazol-2-ylcarbamothioyl)benzamide
چکیده انگلیسی مقاله The present work aimed at comparing the capabilities and efficiency of symmetric and asymmetric electrodes for potentiometric detection of Cu2+. Initially, we synthesized N-(benzothiazol-2-ylcarbamothioyl)benzamide, and 1H-NMR, 13C-NMR, and FT-IR spectroscopy approaches were used for characterization. Subsequently, it was employed as an ionophore to fabricate asymmetric electrodes of coated wire (CWE) and solid-state (SSE) and symmetric electrodes with liquid internal electrolyte (LIE). The best liquid membrane was prepared with an Ionophore: DBP: PVC: NaTPB ratio of 12:56:30:2. All electrodes exhibited Nernstian responses. The detection limits for SSE (1×10-9 mol/L) and CWE (1×10-7 mol/L) were superior to LIE (2×10-6 mol/L). Moreover, all three electrodes demonstrated very short response times (approximately 6 seconds) and exhibited large selectivity coefficient values for different cations. Asymmetric electrodes displayed longer lifetimes (SSE: 13 weeks and CWE: 12 weeks) compared to the symmetric electrode (LIE: 10 weeks). Finally, the electrodes were utilized for potentiometric titration of Cu2+ with ethylenediaminetetraacetic acid.
کلیدواژه‌های انگلیسی مقاله Coated wire electrode,Cu2+,Liquid membrane,N-(benzothiazol-2-ylcarbamothioyl)benzamide,Potentiometry,solid-state electrode
نویسندگان مقاله Abbas Nasri Fateh |
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran

Leila Hajiaghababaei |
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran

Mohammad Reza Allahgholi Ghasri |
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran

Ashraf Sadat Shahvelayati |
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran

Khadijeh Kalateh |
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran

نشانی اینترنتی https://www.abechem.com/article_712921_7331f7b2298eaa2e90fbbc0d1eb21b66.pdf
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