Coated wire ion selective electrodes for determination of cationic and anionic surfactants

In this paper two new coated wire ion selective electrodes are reported, one of which, prepared by aliquot permanganate as electroactive material, found to be useful for the determination of cationic surfactants. The other one, which was prepared using the Ion-pair complex formed between cetyl trimethylammonium bromide (CTAB) and sodium dodecylsulfate (SDS) was found to be useful for the determination of anionic surfactants. Dip coating technique was used for the preparation of these electrodes. The characteristics of electrodes in terms or electrode response, response time, and working range of pH have been evaluated.