Thiocyanate Solvent Polymeric Membrane Ion-selective Electrode Based on Cobalt(III) α,β,γ,δ-Tetraphenylporphyrin Anion Carrier

Article abstract of DOI:10.1246/cl.1988.993

A solvent polymeric membrane ion-selective electrode based on thiocyanato(α,β,γ,δ-tetraphenylporphynate)cobalt(III) was developed.The electrode membrane exhibits SCN^- >> I^- > NO2^- >> ClO4^- > HCO3^- > HPO4^2- > Cl^- ca.Br^- > NO3^- ca.SO4^2- selectivity sequence with a preference for SCN^- over ClO4^- by 10^2.5 - 10^3.1.Response of the electrode is linear in the 10^-5 to 10^-1 M concentration range for SCN^- with a slope of -49 +/- 2 mV/log a.