• Dr. Mayank

A lead ion selective composite cation exchanger 2,-amino-4 methyl -N-hydroxy-benzene-carboxamide (AMHBCA) was used as electro active component for the construction of a ion selective membrane electrode. The membrane electrode are formed by using plasticizer dibutyl(butyl) phosphonate (DBBP), diisodecyl Phthalate (DIDP), diisononyl Phthalate (DINP) and PVC in different composition. The membrane electrode formed by using diisodecyl Phthalate (DIDP) plasticizer showed a Nernstian response 28.6 mv per decade for Pb2+ ions over a wide concentration range. The electrode works satisfactory in the concentration range 6.0×10-5 to 1.0×10-1 M with near Nernstian slope of 29.6 mv per decade of concentration between pH from 2.6 to 5.8.The electrode also showed better selectivity for Pb2+ ion over many interfering ions. Results of the investigation reveal that the membrane electrode prepared by using 4 mg of organic ion exchange (AMHBCA), 80 mg DIDP and 150 mg PVC is the best. The performance of the electrodes is comparable with existing electrode in term of working concentration range, slope, pH, response time and selectivity over a number of cations.

Plasticizer, Ion selective membrane electrode, Pb2+, pH, Nernstian response, selectivity, solvent effect.

"Study of lead Ion Selective Membrane Electrode Formed by Cation Exchanger 2-amino-4 methyl -N-hydroxy-benzene-carboxamide (AMHBCA) for the Selective and Determination of Pb2+ Ions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.a118-a125, January-2022, Available :http://www.jetir.org/papers/JETIR2201015.pdf

"Study of lead Ion Selective Membrane Electrode Formed by Cation Exchanger 2-amino-4 methyl -N-hydroxy-benzene-carboxamide (AMHBCA) for the Selective and Determination of Pb2+ Ions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppa118-a125, January-2022, Available at : http://www.jetir.org/papers/JETIR2201015.pdf