Zinc Selective Ionophores for Potentiometric and Optical Sensors

Authors

Ernö Lindner, Budapest University of Technology and EconomicsFollow
Mária Horváth, Budapest University of Technology and Economics
Klára Tóth, Budapest University of Technology and Economics
Erno Pungor, Budapest University of Technology and Economics
István Bitter, Budapest University of Technology and EconomicsFollow
Béla ágai, Budapest University of Technology and EconomicsFollow
László Töke, Budapest University of Technology and Economics

Abstract

Iminodiacetamide derivatives were synthesized and studied as ionophores in plasticized poly(vinyl chloride) membranes with potentiometric and optical transduction. The N-benzyl and N-phenyl derivatives proved to have a distinct zinc selectivity preferring Zn2+ over Ca2+, Na+ by factors of 6x105 and 3x104, respectively. All ionophores exhibit a serious proton interference (logKPottzn + +,H1+ - 6) which suggests that all application of this type of ionophores based sensors are limited to hydrogen ion buffer solution at pH ≥ 6. © 1992, Taylor & Francis Group, LLC. All rights reserved.

Publication Title

Analytical Letters

Recommended Citation

Lindner, E., Horváth, M., Tóth, K., Pungor, E., Bitter, I., ágai, B., & Töke, L. (1992). Zinc Selective Ionophores for Potentiometric and Optical Sensors. Analytical Letters, 25 (3), 453-470. https://doi.org/10.1080/00032719208016108