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<p style="text-align: justify;">Design and construction of ion-selective electrode based on a new Schiff base and its application in determination of copper(II) ions</p><p> </p>

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Title Statement <p style="text-align: justify;">Design and construction of ion-selective electrode based on a new Schiff base and its application in determination of copper(II) ions</p><p> </p>
 
Added Entry - Uncontrolled Name Vardini, Mohammad Taghi ; Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
Valilue, Zahra ; Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
Ghorbani Kalhor, Ebrahim ; Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
Tabriz Branch, Islamic Azad University
 
Uncontrolled Index Term Electrochemistry, Electroanalytical chemistry, Ion-selective electrodes, Schiff bases, Potentiometry, PVC-membrane, Copper
 
Summary, etc. <p class="Abstract" style="text-align: justify;">A copper(II) selective sensor has been made from polyvinyl chloride matrix membrane based on the carrier, 2-(5-bromo-2-hyroxybenzylidineamino) pyridine 3-ol as an ionophore, <em>ortho</em>-nitrophenyl octyl ether (o-NPOE) as mediator solvent and sodium tetraphenylborate (NaTPB) as additive. The best performance is presented by membrane of composition of ionophore (Schiff base):PVC:<em>o</em>-NPOE:NaTPB of 3:33:63:1 (by weight). The membrane potential response is linear in the concentration range of 1.0×10<sup>-7</sup> to 1.0×10<sup>-2</sup> <em>M</em> with the Nernstian slope of 29.5±0.5 mV per decade of Cu<sup>2+</sup> and a detection limit of 7.4×10<sup>-8</sup> <em>M</em>. The response time of the sensor is very short; less than 10 s, and it can be used for at least 8 weeks without any difference in potential. The proposed copper(II) selective electrode displays excellent selectivity towards alkali, alkaline earth and transition metal ions and can be used in the <em>p</em>H range of 4-7. It has been successfully used as an indicator electrode for the determination of Cu(II) in water samples. The electrode has also been employed as an indicator electrode in titration of Cu<sup>2</sup><sup>+ </sup>with EDTA.<strong></strong></p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-16 15:22:51
 
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http://op.niscair.res.in/index.php/IJCA/article/view/8561
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 55, ##issue.no## 1 (2016): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/8561/23968
 
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