Ion selective electrodes (ISE) are used for detecting various ions important in
clinical, environmental and industrial areas, because they offer advantages such as high
selectivity, sensitivity, good precision, simplicity and low cost. Ion-selective polymeric
membranes usually contain about 30 % (m/m) polymer, 65 % plasticizer and a few % of
ionophore and ion exchanger [1]. Ionophores are complexing agents that are capable of
reversibly binding ions and transporting them across organic membranes by carrier
translocation. Because of the importance of developing new synthetic receptor molecules
in the construction of poly(vinyl chloride) membrane ion-selective electrodes, many
carboxylates have been introduced as ionophores. The analytical and functional
parameters (concentration range where the potential changes with pA linearly, the slope
of the calibration curve, selectivity, response time and life time) have been determined
[2]. The interference of other species on these parameters and behaviour of the electrodes
in policomponent systems were studied.
Table Response characteristics of the proposed ion-selective electrodes

The presented electrodes have chemometric parameters good enough for the
analysis of these species in real objects.
References
1. K. Maksymiuk, A. Michalska CHEMIK, 69 (7), 373–382, 2015.
2. E. Pungor Pure & Appl. Chem., 64 (4), 503-507, 1992.