Chloride-selective electrode based on molecular oriented membrane

Abstract

In order to improve durability of chloride ion selective electrode based on molecular oriented membrane (MO2), a novel polymer system (MO4) was developed. In the polymer, ion sensitive sites are immobilized by covalent bonds to prevent dissolution of membrane components to sample solution. And molecular orientation was observed in the new system by X-ray measurement. MO4 system showed the same selectivity profile as the previous system with improved durability.

Key Words:

• Bilayer structure
• Durability
• Immobilization
• quaternary ammonium salt monomer