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Table 9 Multi-elements analysis of natural water samples using ICP-AES for the determination of heavy metal ions in μgl−1 (ppb), after preconcentration using DiGu.MC adsorbent

From: Novel diaminoguanidine functionalized cellulose: synthesis, characterization, adsorption characteristics and application for ICP-AES determination of copper(II), mercury(II), lead(II) and cadmium(II) from aqueous solutions

Sample Metal ions Spiked Measured Recovered Recovery, %
Tap water Cu(II) 0.00 2.3 (3.5–5.0) 00 00
10 11.8 9.5 95.00
20 21.9 19.6 98.00
Hg(II) 0.00 ND ND ND
10 9.60 9.60 96.00
20 19.80 19.80 99.00
Pb(II) 0.00 4.4 (0.5–5.0) 00 00
10 14.1 9.70 97.00
20 24.00 19.60 98.00
Cd(II) 0.00 0.30 (0.2–0.6) 00 00
10 9.70 9.70 97.00
20 19.80 19.5 97.50
Nile water Cu(II) 0.00 3.60 (5.0–20.0) 00 00
10 13.20 9.60 96.00
20 23.00 19.40 97.00
Hg(II) 0.00 0.1 (0.08–0.20) 00 00
10 9.90 9.90 99.00
20 19.30 19.20 96.10
Pb(II) 0.00 2.50 (9.0–18.0) 00 00
10 11.90 9.40 94.00
20 22.10 19.60 98.00
Cd(II) 0.00 0.13 (0.20–0.60) 00 00
10 9.93 9.80 98.00
20 19.63 19.50 97.5
Sea water Cu(II) 0.00 31.70 00 00
10 41.60 9.90  
20 51.40 19.70 98.50
Hg(II) 0.00 0.09 00 00
10 9.94 9.85 98.50
20 19.49 19.40 97.00
Pb(II) 0.00 10.5 (1–28) 00 00
10 20.00 9.50 95.00
20 30.10 19.60 98.00
Cd(II) 0.00 0.13 (0.2–1.0) 00 00
10 9.93 9.80 98.00
20 19.53 19.40 97.00
  1. Conditions: pH = 6, 400 mg l–1 adsorbent, stirring time 60 min at 25 °C, n = 5. ND = not detected. All measured RSD ranges from 1 to 5%. The values in parentheses are the convenient or permissible values or values measured from previous work on the investigated elements