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Zirconium phosphoborate based heterogeneous membrane electrode has been used as a sensor for yttrium ions in aqueous medium. The electrode shows reproducible and Nernstian behavior for yttrium ions in the oncentration range 10-4M to 10-1M with an RSD of 2%. The electrode does not show any change in response within a pH range of 5-9. The effect of internal solution concentration on the calibration curve was also studied. The electrode performance was also studied in partially non-aqueous medium (5% - 20%) of acetone and ethanol. The system was used successfully as an indicator electrode in potentiometric titration of yttrium ions with EDTA.
Zirconium phosphoborate, membrane electrode, Yttrium selective electrode, calibration curve, indicator electrode for potentiometric titration of yttrium ions
SK and PPS gratefully acknowledge Punjab Technical University (PTU), Jalandhar for permission to work on the project. SKM is thankful to Director, Thapar University, Patiala for the support.
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