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Table 4 Determination of Cd, Cu, and Pb in tap water and Kızılırmak river water samples (volume of samples 250 mL)

From: Mucor pusillus immobilized Amberlite XAD-4 biocomposites for preconcentration of heavy metal ions by solid-phase extraction method

Samples Element Added (μg/L)a Found (μg/L)b Relative error, %
Tap water Cd N.D
10 9.5 ± 0.2 − 5
Cu 12.3 ± 0.4
10 20.6 ± 0.5 − 8
Pb N.D
10 9.4 ± 0.3 − 6
River water Cd N.D
10 9.3 ± 0.3 − 7
Cu 20.4 ± 0.6
10 28.7 ± 0.7 − 6
Pb N.D
10 9.2 ± 0.2 − 8
  1. N.D not detected
  2. aMean of five determinations at 95% confidence level (\( \overline{x} \)±\( ts/\sqrt{N} \))
  3. bShows the concentration of metal ions in tomato leaves and Kızılırmak river water samples