Synthesis and Characterization of Organic-Inorganic Nanocomposite Poly-o-anisidine Sn(IV) Arsenophosphate: Its Analytical Applications as Pb(II) Ion-Selective Membrane Electrode

Table 4

Characterization of ion exchange membranes of poly-o-anisidine Sn(IV) arsenophosphate.

Poly-o-anisidine Sn(IV) arseno phosphate composite material	Thickness of the membrane (mm)	Water content as % weight of wet membrane	Porosity	Swelling of % weightof wet membrane
M-1	0.2	2.0000	0.0005	0.04
M-2	0.28	2.1762	0.0003	0.03
M-3	0.3	2.15124	0.0003	0.03
M-4	0.4	2.96084	0.004	0.05