Sample

Molybdenum (mg L−1)

Recovery ± s (%)

RSD (%)

X ± t p S n

Added

Found

Tap water

50

57.6

101.5 ± 1.2

2.4

7.6 ± 0.19

100

108.4

99.0 ± 1.3

3.5

8.4 ± 0.30

100

107.5

100.8 ± 0.8

2.8

7.5 ± 0.22

Well water

50

54.60

100..2 ± 0.9

3.3

4.60 ± 0.16

100

104.68

100.5 ± 1.3

3.6

4.68 ± 0.18

100

104.73

100.6 ± 1.2

2.7

4.73 ± 0.13

River water

50

65.45

101.2 ± 1.0

3.2

15.45 ± 0.52

100

115.34

99.2 ± 1.1

3.8

15.34 ± 0.61

Sea water

50

63.05

98.7 ± 1.2

2.7

13.05 ± 0.37

100

113.16

99.1 ± 1.3

2.5

13.16 ± 0.34

Drain water

50

57.24

100.6 ± 0.9

3.4

7.24 ± 0.28

100

107.39

99.5 ± 1.0

3.3

7.39 ± 0.26