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N′,N″,N″′ tris(2-pyridyloxymethyl) ethane (TPOME) has been used as an ionophore in a polyvinylchloride (PVC)-based membrane. Membrane electrode with a composition 30:5:62:3 (PVC:TPOME: o-NPOE:NaTPB) exhibits Nernstian response towards Pb(II) ions with a slope of 30 mV/decade, over a concentration range of 1 × 10 − 5 M to 1 × 10 − 1 M. Potential response remains almost unchanged over pH range of 3...
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