Influence of Introduced Substituents on the Anion-selectivity of [14]Tetraazaannulene Complexes

Recent development of ion-selective electrodes

“…Therefore, the membrane containing hydrophobic salts of the target ion plays a role of an ion-sensitive membrane. For example, tetraazaannulene nickel complex salts provide the sensitivity of mono anion [9], tetraalkylammonium nitrate provides the sensitivity of nitrate [2,3,10,11], tricaprylmethylammonium salt of bisphenols provides the sensitivity of bisphenol S [12] to the membrane. However, the membrane containing only the hydrophobic salt is weak for the pollution with hydrophobic ions [11].…”