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Table 1 Selective coefficients of pH sensors using SSM for primary ion (H+) against interfering ions

From: Potentiometric performance of flexible pH sensor based on polyaniline nanofiber arrays

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