Ions

Residual activity (%)

2.5 mM

5 mM

10 mM

Control

100.0

100.0

100.0

K+

130.0*

133.9*

106.7

Ca+

123.1*

124.8*

116.1

Mn+

109.3

104.3

110.4

Zn+

108.4*

98.7

85.8

Mg+

103.8

102.9

96.5

Co+

101.1

91.9

84.5

Cu+

85.7*

78.2*

64.5*

Fe+

101.3

80.7

107.1

Na+

89.8

94.4

115.7