Table 2 Determination of Cu2+ ion content in water samples

From: A colorimetric chemosensor for Cu2+ ion detection based on an iridium(III) complex

Complex

Sample

[Cu2+]/μM

Spiked [Cu2+]/μM

Found [Cu2+]/μM

Recovery (%)

1

Tap water 1

0.89

2

2.65 ± 0.08

88

1

Tap water 1

0.89

0.05

0.93 ± 0.06

80

1

Tap water 2

0.67

2

2.45 ± 0.09

89

1

Tap water 2

0.67

0.05

0.735 ± 0.06

130

1

Shin Mun River

0

2

1.565 ± 0.105

78.25

1

Shin Mun River

0

0.05

0.059 ± 0.01

118

2

Tap water 1

0.89

2

2.73 ± 0.3

92

2

Tap water 1

0.89

0.05

0.92 ± 0.06

60

2

Tap water 2

0.67

2

2.77 ± 0.12

105

2

Tap water 2

0.67

0.05

0.71 ± 0.06

80

2

Shin Mun River

0

2

1.695 ± 0.035

84.75

2

Shin Mun River

0

0.05

0.067 ± 0.003

134

3

Tap water 1

0.89

2

3.085 ± 0.035

109.75

3

Tap water 1

0.89

0.05

0.925 0.055

70

3

Tap water 2

0.67

2

2.365 ± 0.215

84.75

3

Tap water 2

0.67

0.05

0.735 ± 0.005

130

3

Shin Mun River

0

2

1.665 ± 0.115

83.25

3

Shin Mun River

0

0.05

0.065 ± 0.005

130

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