Synthesis of a New Calix[4]Arene and Its Application in Construction of a Highly Selective Silver Ion-Selective Membrane Electrode

Table 2

Selectivity coefficients of the silver ion-selective electrode based on CAD.

Ions	Selectivity coefficients
Ni^2+	6.3 × 10^-5
Zn^2+	5.2 × 10^-5
Ce^3+	1.1 × 10^-5
Pb^2+	6.3 × 10^-4
Na^+	5.4 × 10^-5
Ca^2+	4.2 × 10^-5
Cs^+	7.5 × 10^-5
Tl^+	5.3 × 10^-3
Gd^3+	4.2 × 10^-4