Porperties of ion-selective electrode with polymer membranes for ibuprofen detemrination

摘要

Composition o fa polymeric potential-determining phase for the ibuprofen selective electrode was determined.The different possiblities of using various quaternary ammonium salts-dimethyldidecylammonium bromide,mmethyl-trioctylammonium chloloride,tetraocty lammonium chloride and methyltrioctyloammonium 2-(4-isobutylphenyl)priopionate-as anion exchangers in polymer membranes of ibuprofen electrodes were examined.The following basic electrode parameters were investigated:measurement range,slope,limit of deteciton,lifetime,dependence of the electrode potential on pH and selectivity coefficients in relation to some organic and inorgnaic anions.