Determination of Cd(ii), Pb(ii) and Ni(ii) ions in sea food and agricultural samples.
| Sample | Element | Real sample (ng g−1) | Added (ng g−1) | Found (ng g−1) | Recovery (%) | RSD (%) |
|---|---|---|---|---|---|---|
| Fish 1 (Persian Gulf) | Cd | 6.7 | 10.0 | 15.6 | 89.0 | 6.8 |
| Pb | 15.1 | 10.0 | 24.7 | 96.0 | 5.0 | |
| Ni | 21.3 | 10.0 | 30.5 | 92.0 | 4.9 | |
| Fish 2 (Persian Gulf) | Cd | 8.0 | 10.0 | 17.0 | 90.0 | 7.3 |
| Pb | 29.8 | 10.0 | 38.5 | 88.0 | 6.4 | |
| Ni | 55.3 | 10.0 | 64.0 | 87.0 | 7.9 | |
| Shrimp | Cd | 23.5 | 10.0 | 32.1 | 86.0 | 3.9 |
| Pb | 25.0 | 10.0 | 36.9 | 119 | 6.5 | |
| Ni | 33.4 | 10.0 | 42.2 | 88.0 | 7.8 | |
| Canned tuna | Cd | 5.1 | 10.0 | 14.6 | 95.0 | 6.0 |
| Pb | 75.4 | 10.0 | 84.9 | 95.0 | 8.5 | |
| Ni | 40.1 | 10.0 | 48.5 | 84.0 | 5.2 | |
| Fish (Caspian Sea) | Cd | 19.6 | 10.0 | 29.0 | 94.0 | 4.6 |
| Pb | 60.5 | 10.0 | 71.6 | 111 | 5.9 | |
| Ni | 98.4 | 10.0 | 107 | 86.0 | 6.1 | |
| Fish (Siahroud River) | Cd | 32.2 | 10.0 | 41.5 | 93.0 | 5.9 |
| Pb | 100 | 10.0 | 109 | 90.0 | 9.4 | |
| Ni | 25.3 | 10.0 | 36.0 | 107 | 8.3 | |
| Broccoli | Cd | 3.2 | 10.0 | 13.5 | 103 | 7.1 |
| Pb | 8.9 | 10.0 | 17.8 | 89.0 | 7.4 | |
| Ni | 6.3 | 10.0 | 15.9 | 96.0 | 6.5 | |
| Lettuce | Cd | 3.3 | 10.0 | 12.9 | 96.0 | 6.9 |
| Pb | 12.6 | 10.0 | 23.0 | 104 | 5.0 | |
| Ni | 10.0 | 10.0 | 18.9 | 89.0 | 6.7 | |
| Mushroom | Cd | 2.3 | 10.0 | 12.2 | 99.0 | 8.5 |
| Pb | 5.5 | 10.0 | 15.6 | 101 | 4.1 | |
| Ni | 9.7 | 10.0 | 18.7 | 90.0 | 6.6 |