All-solid-state sensors with polyvinyl chloride (PVC)-based membranes using off-the-shelf N-hydroxysuccinimide (NHS) and succinimide (Succ) ionophores were prepared using DOP (dioctyl phthalate) and NPOE (ortho-nitrophenyloctyl ether) as plasticizers. Good responses were obtained when NHS was used. The potentiometric response of the proposed electrode is independent of pH over the range 2-6. The electrode shows a fast response time of 0.25 s. The electrode exhibits a Super-Nernstian response, with 37.5 mV/decade, with a potentiometric detection limit of 4.4 μM. The proposed sensor revealed good selectivity towards a group of transition metal ions. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
|Publication status||Published - 1 Apr 2013|
- PVC membrane
- Solid-contact electrode
Tutulea-Anastasiu, M. D., Wilson, D., del Valle, M., Schreiner, C. M., & Cretescu, I. (2013). A solid-contact ion selective electrode for copper(II) using a succinimide derivative as ionophore. Sensors (Switzerland), 13(4), 4367-4377. https://doi.org/10.3390/s130404367