Design of Highly Selective and Sensitive PVC-Membrane Sensor for Terbium Ions Based on Di(N-succinimidyl)carbonate as a Neutral Ion Carrier

摘要

A highly selective and sensitive Tb -PVC membrane sensor was created from poly (vinyl chloride)(PVC) matrix membrane containing Di(N-succinimidyl)carbonate (NSC) as an neutral carrier, oleicacid (OA) as anionic excluder and nitrobenzene (NB) as a plasticizing solvent mediator. The electrode-1 performance includes a Nernstian slope of 19.8 0.3 mVdecade across a wide concentration range -1 -1 between 1.010 and 1.010 mol L and a detection limit of 5.810 mol L in a pH range of 4.0.