COMPOSITION OF MATERIAL FOR AN ION-SELECTIVE MEMBRANE ELECTRODE USED FOR DETERMINING ACTIVITY OF COPPER (II) IONS

摘要

The proposed composition of material for an ion-selective membrane electrode used for determining activity of copper ions contains cryptand, tetraphenylborate of alkali metal, polyvinylchloride, and didecylphtalate. As the cryptand, 1,3,12,14-tetraase-6,9,17,20,25-pentaoxabicyclo[12,8,5]heptacosan-3,13-dition is used. As the tetraphenylborate of alkali metal, sodium tetraphenylborate is used.