A Copper(II) Ion‐Selective Potentiometric Sensor Based on N,N′,N″,N′′′‐Tetrakis(2‐pyridylmethyl)‐1,4,8,11‐tetraazacyclotetradecane in PVC Matrix |
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| Authors: | B?B Petkovi? S?P Sovilj M?V Budimir R?M Simonovi? V?M Jovanovi? |
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| Institution: | 1. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Pri?tina, 38220?Kosovska Mitrovica, Serbia;2. Faculty of Chemistry, University of Belgrade, P.?O. Box 158, 11001 Belgrade, Serbia;3. ICTM, Department of Electrochemistry, University of Belgrade, Njego?eva 12, P.?O. Box 473, 11000?Belgrade, Serbia |
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| Abstract: | The simple PVC‐based membrane containing N,N′,N″,N′′′‐tetrakis(2‐pyridylmethyl)‐1,4,8,11‐tetraazacyclotetradecane (tpmc) as an ionophore and dibutyl phthalate as a plasticizer, directly coated on a glassy carbon electrode was examined as a new sensor for Cu2+ ions. The potential response was linear within the concentration range of 1.0×10?1–1.0×10?6 M with a Nernstian slope of 28.8 mV/decade and detection limit of 7.0×10?7 M. The electrode was used in aqueous solutions over a wide pH range (1.3–6). The sensor exhibited excellent selectivity for Cu2+ ion over a number of cations and was successfully used in its determination in real samples. |
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| Keywords: | Cu(II) potentiometric sensors Coated glassy carbon rod Ionophore N N′ N″ N′ ′ ′ ‐Tetrakis(2‐pyridylmethyl)‐1 4 8 11‐tetraazacyclotetradecane Waste waters |
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