Lowering the detection limit of calcium selective ISFETs with polymeric membranes.
Detection limits of Ca sensitive ISFETs with photocured polyurethane membranes with a neutral carrier and an ion-exchanger as ionophores are studied. It is shown that conditioning of ISFETs in solutions containing only interfering ions results in reduction of the detection limit. Zero-current ion fluxes approach elaborated for polymeric membrane ion-selective electrodes (ISEs) is used to explain the obtained results.
Bratov
Andrey
A
Centro Nacional de Microelectrónica, Grupo Transductores Quimicos, Campus U.A.B., Bellaterra E08193 Barcelona, Spain.
Abramova
Natalia
N
Domı  Nguez
Carlos
C