Table 1.

Selective coefficients of pH sensors using SSM for primary ion (H⁺) against interfering ions

Ions (J)	log KIJPOT	KIJPOT
Na+	− 9.80	1.59 × 10−10
K+	− 8.86	1.37 × 10−9
NH4+	− 10.23	5.82 × 10−11
Ca2+	− 9.56	2.70 × 10−10
Mg2+	− 11.48	3.34 × 10−12