Here, we report on the application of corroles as analytically active compounds in liquid membrane electrodes (ISE) that are sensitive
towards salicylic acid and salicylate.
The potentiometric signals generated by corrole-incorporated ISEs strongly depend on the pH of the aqueous sample solution and the
membrane composition, such as the presence of lipophilic sites. Corrole incorporating ISEs are characterised by a low detection limit
(4.0×10minus5 M) and a wide linear range (4.0×10minus5 to 5.3×10minus3 M). Also, they are free from interference versus other organic anions.
The mechanism of the generation of the potentiometric signals of corrole incorporating ISEs in the presence of salicylate anion, as well
salicylic acid, will be discussed.
- Potentiometric response
- Salicylic acid
- Liquid membrane