Abstract
Sodium-selective electrodes were prepared with polymeric membranes containing ester and ketone derivatives of p-tert-butyl calix[4]arene. The electrodes were prepared with 2-nitrophenyl octyl ether as the solvent mediator and potassium tetrakis(p-chlorophenyl)borate as the ion exchanger in a poly(vinyl chloride) matrix. Several of the ligands examined produced electrodes with near-Nernstian slopes, detection limits of ca. 10-5 M for sodium and excellent selectivity against a range of common cations.
| Original language | English |
|---|---|
| Pages (from-to) | 1551-1554 |
| Number of pages | 4 |
| Journal | Analyst |
| Volume | 114 |
| DOIs | |
| Publication status | Published - 1989 |
| Externally published | Yes |
Keywords
- Calixarene
- Ion-selective electrode
- Ionophore
- Phase transfer study