eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 August 2010 6 2 155 160 juc 608 article J. Thamarai selvi 1 G. Shanthi 1 A.Vijayalakshmi 1 Department of Chemistry Avinashilingma University for Women, Coimbatore - 641043 Tamilnadu (INDIA) <p>A new Araldite matrix membrane electrode for Cu²⁺and Ni²⁺ion based on their Barium dichromate as membrane carrier as prepared. The Nernstian response for Cu²⁺and Ni²⁺ion over a wide concentration range of (1M-1x10^-5M) with detection limits of the order of 10^-5 M. The response time of the sensor is 40 seconds for Cu²⁺Ions and 52 seconds for Ni ²⁺ions and membrane can be used for more than six month without observing any deviation. The proposed membrane sensor shows excellent discriminating ability towards Cu²⁺and Ni²⁺ ions in comparison to several alkali, alkaline earth, transition and heavy metal ions. The effect of pH and effect of medium, selectivity co-efficient values have been found to give better responses.</p> https://journalofchemistry.org/paper/608/ Copper (II) Nickel (II) Araldite-matrix selective membrane sensors