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Table 3 Proposed iron (III) sensor selectivity coefficient on separate solution method

From: Potentiometric sensor for iron (III) quantitative determination: experimental and computational approaches

Examined Cation

Log \(K_{Cs,M}^{Pot}\)

\(K_{Cs,M}^{Pot}\)

Fe3+

1

0

K+

− 4.07

8.47 × 10−5

H+

− 3.56

2.74 × 10−4

Na+

− 3.93

1.15 × 10−4

NH4+

− 4.21

6.22 × 10−5

Ag+

− 4.18

6.57 × 10−5

Hg+

− 4.36

4.36 × 10−5

Zn2+

− 2.28

5.23 × 10−3

Ni2+

− 2.43

3.75 × 10−3

Ba2+

− 3.12

7.49 × 10−4

Cd2+

− 3.06

8.65 × 10−4

Co2+

− 2.75

1.78 × 10−3

Cu2+

− 2.31

4.86 × 10−3

Mn2+

− 4.05

8.94 × 10−5

Pb2+

− 3.42

3.84 × 10−4

Mg2+

− 3.27

5.42 × 10−4

Fe2+

− 2.81

1.58 × 10−3

Ca2+

− 3.58

2.61 × 10−4

Cr3+

− 2.49

3.26 × 10−3

Ce3+

− 4.26

5.43 × 10−5

La3+

− 4.17

6.75 × 10−5

Ti3+

− 4.35

4.43 × 10−5

Bi3+

− 4.30

5.01 × 10−5

Al3+

− 3.10

7.89 × 10−4