<authors> <author> <name>A. VIJAYALAKSHMI</name> <affiliationId>1</affiliationId> </author> <author> <name>J. THAMARAI SELVI (thamaraimuthu1973@gmail.com)</name> <affiliationId>1</affiliationId> </author> </authors> <affiliationsList> <affiliationName affiliationId="1">Department of Chemistry, Avinashilingam Institute for Home Science and Higher Education for Women Coimbatore- 641043, Tamilnadu, (India)</affiliationName> </affiliationsList> <abstract language="eng"><p style="text-align:justify">A new, efficient Calcium ion selective electrode has been prepared using acyclic polyether based ionophore. The prepared ionophore is characterized by UV, FT-IR, XRD. Electrochemical impedance spectroscopy (EIS) technique is also employed to study the electrochemical & surfacereactions. The sensor exhibits a near Nernstian response for Ca(II) ion over a concentration range of 1.0 X 10-4M to1.0 M. The proposed sensors revealed relatively good selectivity and high sensitivity for Ca(II) over a mono and divalent cations. It can be used with in the pH range of 3.42 to 6.24 . The effect of medium and the selectivity coefficient values was evaluated using fixed interference method found to give a better response. The influence of temperature on electrode potential was studied & it can be used in the determination of thermodynamic functions like G, H & S. It was also successfully used in the analysis of concentration of Calcium ion in various real samples.</p> </abstract> <fullTextUrl format="html">https://journalofchemistry.org/paper/566/</fullTextUrl> <keywords> <keyword language="eng">Calcium (II)</keyword> </keywords> <keywords> <keyword language="eng">Acyclic Polyether</keyword> </keywords> <keywords> <keyword language="eng">Potentiometry</keyword> </keywords> <keywords> <keyword language="eng">Selectivity coefficient</keyword> </keywords> <keywords> <keyword language="eng">Electrochemical impedance spectroscopy.</keyword> </keywords> </record> </records>

eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 September, 2017 13 5 112 120 http://dx.doi.org/10.22147/juc/130504 566 article <authors> <author> <name>A. VIJAYALAKSHMI</name> <affiliationId>1</affiliationId> </author> <author> <name>J. THAMARAI SELVI (thamaraimuthu1973@gmail.com)</name> <affiliationId>1</affiliationId> </author> </authors> <affiliationsList> <affiliationName affiliationId="1">Department of Chemistry, Avinashilingam Institute for Home Science and Higher Education for Women Coimbatore- 641043, Tamilnadu, (India)</affiliationName> </affiliationsList> <abstract language="eng"><p style="text-align:justify">A new, efficient Calcium ion selective electrode has been prepared using acyclic polyether based ionophore. The prepared ionophore is characterized by UV, FT-IR, XRD. Electrochemical impedance spectroscopy (EIS) technique is also employed to study the electrochemical & surfacereactions. The sensor exhibits a near Nernstian response for Ca(II) ion over a concentration range of 1.0 X 10-4M to1.0 M. The proposed sensors revealed relatively good selectivity and high sensitivity for Ca(II) over a mono and divalent cations. It can be used with in the pH range of 3.42 to 6.24 . The effect of medium and the selectivity coefficient values was evaluated using fixed interference method found to give a better response. The influence of temperature on electrode potential was studied & it can be used in the determination of thermodynamic functions like G, H & S. It was also successfully used in the analysis of concentration of Calcium ion in various real samples.</p> </abstract> <fullTextUrl format="html">https://journalofchemistry.org/paper/566/</fullTextUrl> <keywords> <keyword language="eng">Calcium (II)</keyword> </keywords> <keywords> <keyword language="eng">Acyclic Polyether</keyword> </keywords> <keywords> <keyword language="eng">Potentiometry</keyword> </keywords> <keywords> <keyword language="eng">Selectivity coefficient</keyword> </keywords> <keywords> <keyword language="eng">Electrochemical impedance spectroscopy.</keyword> </keywords> </record> </records>