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.
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J. T. Selvi; G. Shanthi; A.vijayalakshmi, "Potentiometric determination of Copper (II) and Nickel (II) ions using Barium dichromate as an electro active material", Journal of Ultra Chemistry, Volume 6, Issue 2, Page Number 155-160, 2018Copy the following to cite this URL:
J. T. Selvi; G. Shanthi; A.vijayalakshmi, "Potentiometric determination of Copper (II) and Nickel (II) ions using Barium dichromate as an electro active material", Journal of Ultra Chemistry, Volume 6, Issue 2, Page Number 155-160, 2018Available from: http://journalofchemistry.org/paper/608/