A PVC phenoxyacetate selective electrode has been developed for the indirect sensing of phenol, after in situ derivatization with chloroacetic acid. The electrode exhibits a Nernst response in the range 10-1 - 3.2 × 10-4 M phenoxyacetate with a slope of 68.9 mV per concentration decade. The electrode has a wide working pH range (7.5-11.0), a fast response time (less than l min), and is stable for at least 1 1 2 months.
Scopus Subject Areas
- Analytical Chemistry