• Manish Uppal
• Menka Surana

Abstract: A newly synthesized PVC based cobalt ion selective electrode was fabricated using Schiff base ligand (E)-2-((3-(3-nitrophenyl)-1-phenyl-1H-pyrazol-4-yl)methyleneamino) phenol as ionophore. The selectivity of the fabricated electrode for various ions was determined by fixed interference method. Various plasticizers were used as membrane components and membrane composition was optimized. The membrane electrode with the composition of BEHS: PVC: Ionophore: Anionic additive of 65%:32%:2%:1% (w/w) has a lower detection limit of 3.4 x 10-9 M in a linear concentration range of 2.0 x 10-8 M to 1.0 x 10-1 M with a Nernstian slope of 31.0 mV/ decade of activity. The fabricated membrane electrode no.4 works satisfactorily in a pH range of 3.0–8.0 with a quick response time of < 8s.

Cobalt, Selectivity, Ion-selective electrode.

"Fabrication of Ion-Selective Membrane for Potentiometric Assessment of Cobalt ion", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.69-75, December-2018, Available :http://www.jetir.org/papers/JETIR1812312.pdf

"Fabrication of Ion-Selective Membrane for Potentiometric Assessment of Cobalt ion", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp69-75, December-2018, Available at : http://www.jetir.org/papers/JETIR1812312.pdf