• Dr. Naheed Azam
• Ms. Tahreem Momin

The present work describes the preparation of new PVC membrane electrodes for NO3- and SCN- ions based on precipitated nitron-nitrate, nitron-thiocyanate mixed with PVC in tetrahydrofuran along with dibutyl phthalate as an electroactive material. The nitrate selective electrode shows linear response in the concentration range of 1 x 10 -1 M to 1 x 10-5 M with pH working range of 2 to 10 and dynamic response time of 20 seconds at the concentration of 1 x 10 -2 M, 1 x 10-3 M and 1 x 10-4 M. The thiocyanate selective electrode shows linear response in the concentration range of 1x10-1 M to 5x10-6 M with a pH working range of 3 to 8 and dynamic response time of 15 seconds at the concentration of 1 x 10 -2 M, 1 x 10-3 M and 1 x 10-4 M. The selectivity coefficients (K_ij^pot) for the two electrodes have been evaluated using mixed solution method. The sensors are found to be useful in potentiometric titrations and have been successfully used in the analysis of real sample.

Ion selective electrodes, ISE, nitron, PVC membrane, sensors.

"A New Ion Selective and Sensitive PVC Membrane Electrode based on Precipitated Nitron Nitrate and Nitron Thiocyanate", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 12, page no.e643-e646, December-2022, Available :http://www.jetir.org/papers/JETIR2212491.pdf

"A New Ion Selective and Sensitive PVC Membrane Electrode based on Precipitated Nitron Nitrate and Nitron Thiocyanate", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 12, page no. ppe643-e646, December-2022, Available at : http://www.jetir.org/papers/JETIR2212491.pdf