Composition of the ion-selective electrode membrane for dodecylsulfate ions determination

摘要

The invention relates to the physico-chemical analysis methods, in particular, to the dodecylsulfate ions content determination in the solutions and industrial waters, as well the dodecylsulfate ion-selective electrodes production. The summary of the invention consists in the fact that the trinuclear chromium(III) benzoate dodecylsulfate is being used as an electroactive substance in the composition of the ion-selective electrode membrane for dodecylsulfate ions determination , comprising electroactive substance, the solvent-plasticizer and polyvinylchloride polymeric matrix, and as a solvent-plasticizer nitrobenzene and dioctylphthalate is used with the following components relation ( mas. %): nitrobenzene 55 dioctylphthalate 20...25 polyvinylchloride 20...25 trinuclear chromium(III) benzoate dodecylsulfate