the sodium-selective ligand 1,1,1-tris [ 1 ( 1 ) - ( 2 ( 1 ) -oxa-4 ( 1 ) -oxo-5 ( 1 ) -aza-5 ( 1 ) -methyl ) dodecanyl ] propane dissolved in 3-nitro-o-xylene containing a small amount of the lipophilic anion tetrachlorophenyl borate was used as a liquid ion-exchanger in sodium-selective microelectrodes .
C0003075
anion
C0022023
ion