Skip to main content

Table 4 Results for metal ions determination in various water samples obtained using the optimum conditions.

From: Salicylic acid functionalized silica-coated magnetite nanoparticles for solid phase extraction and preconcentration of some heavy metal ions from various real samples

Sample

Added (μg L-1)

Found (μg L-1) a

  

Cu(II)

Ni(II)

Cd(II)

Cr(III)

Tap water

0.00

10.00

1.95 ± 0.45 12.12 ± 0.12

5.82 ± 0.31 15.98 ± 0.35

NDb 10.03 ± 0.07

ND 10.12 ± 0.09

Canal water

0.00

10.00

4.93 ± 0.15 14.87 ± 0.11

6.48 ± 0.36 16.32 ± 0.38

0.83 ± 0.09 10.68 ± 0.12

5.85 ± 0.38 16.17 ± 0.29

Sewage water

0.00

10.00

6.93 ± 0.16 17.19 ± 0.12

69.88 ± 0.41 80.09 ± 0.37

4.65 ± 0.13 14.91 ± 0.21

52.75 ± 0.26 63.12 ± 0.32

River water

0.00

10.00

3.64 ± 0.13 13.48 ± 0.22

8.92 ± 0.61 19.13 ± 0.52

1.67 ± 0.05 11.95 ± 0.24

1.32 ± 0.25 11.44 ± 0.42

  1. (N = 5)
  2. a Mean of five determinations ± standard deviation
  3. b Not detected