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Table 5 Results for metal ions determination in various 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

Samples

Reported value (μg g-1)

Found by proposed method (μgg-1)a

Multivitamin

Cu: 3.98

Cu:3.95 ± 0.13

Infant milk substitute

Cu:2.90

Cu: 2.89 ± 0.25

Hydrogenated oil

Ni: 4.50

Ni:4.3 ± 0.3

  1. (N = 5)
  2. a Mean of five determinations ± standard deviation
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BMC Chemistry

ISSN: 2661-801X

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