Disposable Screen-Printed Microchip Based on Nanoparticles Sensitive Membrane for Potentiometric Determination of Lead

Table 3

Selectivity coefficient values of the DSPLM electrode (microchip assembly 2, t; 25°C, pH; 5, [M]; 1 × 10⁻³ mol L⁻¹).

Ion
Pb^2+	1
Li^1+	1.7 × 10^−2
Cr^3+	5.2 × 10^−7
	1.1 × 10^−2
Mg^2+	1.6 × 10^−5
Cd^2+	1.4 × 10^−5
Fe^3+	7.9 × 10^−6
Ca^2+	1.6 × 10^−4
Na^+	1.6 × 10^−2