Y. Tsujimura et al., SODIUM ION-SELECTIVE ELECTRODES BASED ON SILICONE-RUBBER MEMBRANES COVALENTLY INCORPORATING NEUTRAL CARRIERS, Analyst, 121(11), 1996, pp. 1705-1709
Neutral carriers, such as 16-crown-5 and calix[4]arene tetraester, mer
e immobilized on silicone-rubber membranes by covalent bonding, Sodium
ion-selective electrodes based on silicone-rubber membranes modified
chemically by the calixarene ionophore together with an anion excluder
exhibited high performance in terms of :sensitivity, selectivity and
response time.