CHLORINE ION SENSITIVE FILM, CHLORINE ION SELECTIVE ELECTRODE, AND ION ANALYZER

摘要

PROBLEM TO BE SOLVED: To provide a chlorine ion sensitive film that has a long life, and can measure chlorine ion concentration at a high sensitivity and a high selectivity.;SOLUTION: A chlorine ion sensitive film includes a polymeric film having a structure in which both a substituent group having a water-insoluble high dielectric constant functional group such as a 4-nitro benzyl group and a substituent group having a hydrophilic functional group such as a hydroxyalkyl group are bound to nitrogen atoms of a quaternary ammonium salt covalently bound to a polymer material. Thus, a chlorine ion selective electrode 20 that has a high sensitivity, is hardly blocked, and has a high durability can be provided.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT