Use of bismuth tungstate based solid membrane as lead(II)ion-selective electrode

608-609A new solid membrane electrode prepared using bismuth tungstate ion-exchanger and “Araldite", an inert binder, responds linearly to Pb2+ ion in the concentration range 1.0-1.0 x 10-4 M. The electrode has a pH range 2.0-6.0, static response time 20 s and a usable working life of two months. The selectivity coefficients for various monovalent, bivalent and trivalent cations have been evaluated