Sample

Sb(III) Added

(µg∙L⁻¹)

Propose Methodology

ETTAS

RE%*

Sb(III) Found ± SD (µg∙L⁻¹)

Recovery

(%, n = 4)

Sb(III) Found ± SD (µg∙L⁻¹)

1

-

2.04 ± 0.01

-

2.15 ± 0.001

5.11

0.60

2.632 ± 0.03

99.61

0.72

2.748 ± 0.05

99.41

2

-

1.39 ± 0.06

-

1.30 ± 0.02

6.47

0.60

1.987 ± 0.02

100.52

0.72

2.105 ± 0.08

101.43

3

-

1.98 ± 0.03

-

1.84 ± 0.003

7.07

0.60

2.587 ± 0.06

99.78

0.72

2.703 ± 0.06

100.15

4

-

2.22 ± 0.06

-

2.50 ± 0.04

11.2

0.60

2.830 ± 0.02

100.45

0.72

2.943 ± 0.07

100.13

5

-

0.33 ± 0.03

-

0.303 ± 0.07

8.18

0.36

0.679 ± 0.01

96.66

0.48

0.803 ± 0.04

97.87

6

-

0.16 ± 0.04

-



-

0.36

0.523 ± 0.02

101.87

0.48

0.644 ± 0.05

102.50

7

-

1.06 ± 0.02

-

1.10 ± 0.02

3.63

0.36

1.411 ± 0.05

99.15

0.48

1.537 ± 0.01

99.72

8

-

1.45 ± 0.04

-

-

-

0.36

1.804 ± 0.07

99.59

0.48

1.919 ± 0.07

99.24

9

-

3.23 ± 0.03

-

3.15 ± 0.07

1.54

0.60

3.841 ± 0.02

100.34

0.72

3.955 ± 0.09

100.15

10

-

2.91 ± 0.01

-

3.02 ± 0.01

3.64

0.60

3.501 ± 0.02

99.69

0.72

3.647 ± 0.03

100.58