Ligand

E%

Cd²⁺ R%

E%

Zn²⁺ R%

E%

Pb²⁺ R%

1

2

3

4

96.50

95.09

96.87

99.89

96.55

97.44

96.97

99.88

93.20

70.49

93.62

58.27

96.94

86.18

95.31

81.49

75.40

92.32

97.31

78.06

78.12

97.73

97.26

80.41