xmlui.ArtifactBrowser.SimpleSearch.filter.source:Scientific papers of the University of Pardubice. Series A, Faculty of Chemical technology. 3(1997)
ISSN:1211-5541
Abstract:
An overview is given on the use of simple potentiometric sensors to monitor titrations based on various principles. Earlier results obtained with polymeric membrane electrodes of the coated-wire type are compared to those taken with carbon paste electrodes. Both the types can be recommended as simple and inexpensive sensors suitable to monitor titrations based on ion-pairing principles. It is expected that an organic solvent present in both the sensors (a membrane plasticizer or pasting liquid) is saturated with an ion-pair formed within such a titration on extraction principles, thus giving selective ion-exchanging electrodes. Although in acid-base titrations and some of determinations based on both oxidation-reduction and precipitation reactions the potential breaks can also be obtained, authors prefer monitoring of them with other suitable sensors.