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
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 | Â | ||
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 |