Table 1.
Recovery measurement for HMI detection in the extracted infant milk powder.
| Sample | Cd(II) | Pb(II) | ||||||
|---|---|---|---|---|---|---|---|---|
| Added (μg L−1) |
ICP-MS (μg L−1) |
Our Method (μg L−1) |
Recovery (%) |
Added (μg L−1) |
ICP-MS (μg L−1) |
Our Method (μg L−1) |
Recovery (%) |
|
| 1 | 0 | 0 | 0 | / | 0 | 0 | 0 | / |
| 30 | 33.23 ± 1.18 | 21.45 ± 1.38 | 71.5 | 30 | 27.25 ± 3.73 | 33.12 ± 1.48 | 110.4 | |
| 2 | 0 | 0 | 0 | / | 0 | 0 | 0 | / |
| 30 | 33.19 ± 0.42 | 25.83 ± 3.54 | 86.1 | 30 | 29.65 ± 0.82 | 34.06 ± 1.33 | 113.6 | |
| 3 | 0 | 0 | 0 | / | 0 | 0 | 0 | / |
| 30 | 33.24 ± 0.08 | 27.94 ± 2.88 | 93.2 | 30 | 27.17 ± 0.60 | 31.05 ± 1.85 | 103.5 | |
| 4 | 0 | 0 | 0 | / | 0 | 0 | 0 | / |
| 30 | 32.19 ± 0.07 | 23.39 ± 1.38 | 77.9 | 30 | 31.49 ± 1.56 | 36.13 ± 4.79 | 120.5 | |
| 5 | 0 | 0 | 0 | / | 0 | 0 | 0 | / |
| 30 | 33.57 ± 0.59 | 31.56 ± 3.90 | 105.2 | 30 | 37.69 ± 0.66 | 38.58 ± 3.39 | 128.6 | |