Voltametric investigation of K+ ion transfer facilitated by dibenzo-18-crown-6 across the interface of water/nitrobenzene

Abstract

The first investigation of transfer of K⁺ ion across the interface of water/nitrobenzene (NB) containing dibenzo-18-crown-6 ligands was performed by help ofa homemade potentiostat with 4 electrodes. Cyclic voltammograms (CVs) were measured in background solutions of KCl 0.1 M in water and 0.05 M tetraphenylarsoniumtetraphenylborate (TPnATPB) in nitrobenzene (NB). Significant ohmic resistance in both water and NB phases was compensated by using the optimal software. An agreement between obtained results and previous studies was found as well. The results are able to employ for making ion-selective electrodes