CHEMICAL

EFFECT OF pH ON THE PERFORMANCE OF ION SELECTIVE ELECTRODE H2PO4
- USING MEMBRANE PVC BERPENDUKUNG
WITH ALIQUAT 336

abstract
Effect of ph to ion selective electrode’s h2po4  performance using pvc-supported membrane with  aliquat 366. Research about Effect Of pH to Ion Selective Electrode’s H2PO4  Performance Using PVC-Supported Membrane With Aliquat 366 has been performed. Membrane composition which were used : PVC(0,85 g), Aliquad 336(0,07 g), DOP (0,58 g) dan THF (1 ml ) The result indicated that on pH range of 3 – 6 Nerstian slope obtained : 19 – 62,5 mV per decade. The best condition was on pH 3 with Nernstian Slope 62,5 mV per decade for ISE-H2PO4 - . ISE- H2PO4- Performance was determined by membrane composition factor, pH, age of electrode, and selectivity coefficient.
Keywords : pH, ISE Performance, Aliquad 336, H2PO4-