| Added solutions in micrograms per gram | Sputum | % recovery | Saliva | % recovery | Nasal Fluid | % recovery |
| Zinc (µg/L) | ||||||
| 0 | 132 ± 5.23 | --- | 357 ± 6.98 | --- | 161 ± 8.05 | --- |
| 10 | 141.5 ± 3.85 | 99.6 | 366.2 ± 5.00 | 99.8 | 170.3 ± 6.84 | 99.6 |
| 20 | 151.2 ± 4.05 | 99.5 | 376.5 ± 7.15 | 99.8 | 180.5 ± 7.92 | 99.7 |
| 30 | 160.9 ± 6.02 | 99.3 | 385.7 ± 6.33 | 99.6 | 190.2 ± 6.91 | 99.6 |
| Iron (µg/L) | ||||||
| 0 | 1.25 ± 0.21 | --- | 0.85 ± 0.13 | --- | 1.14 ± 0.15 | --- |
| 0.5 | 1.742 ± 0.15 | 99.5 | 1.345 ± 0.11 | 99.6 | 1.632 ± 0.09 | 99.5 |
| 1.0 | 2.241 ± 0.26 | 99.6 | 1.842 ± 0.14 | 99.6 | 2.135 ± 0.13 | 99.8 |
| 2.0 | 3.2395 ± 0.19 | 99.7 | 2.838 ± 0.16 | 99.6 | 3.129 ± 0.12 | 99.6 |
| Copper (µg/L) | ||||||
| 0 | 589 ± 16.2 | --- | 162 ± 7.09 | --- | 219 ± 13.7 | --- |
| 10 | 598.5 ± 13.5 | 99.9 | 171.5 ± 8.01 | 99.7 | 228.4 ± 9.91 | 99.7 |
| 20 | 608.5 ± 15.6 | 99.9 | 181.2 ± 9.65 | 99.5 | 238.5 ± 8.66 | 99.8 |
| 30 | 618.2 ± 11.9 | 99.8 | 190.9 ± 7.95 | 99.4 | 247.9 ± 10.5 | 99.5 |