Table 3.
Recovery study using standard reference materials (SRM).
| Metal | Certified Material | Concentration Recorded (mg/kg) | Concentration Cerified (mg/kg) | Recovery Percentage (%) |
|---|---|---|---|---|
| Al | SRM 1515 Apple Leaves |
286 ± 9 | 285.1 ± 26 | 99.7 |
| Sr | 25.0 ± 2.0 | 24.6 ± 4.0 | 98.3 | |
| Cr | 0.29 ± 0.03 | 0.30 ± 0.00 | 97.8 | |
| Co | 0.09 ± 0.00 | 0.09 ± 0.00 | 100 | |
| Mo | 0.09 ± 0.01 | 0.09 ± 0.02 | 99.4 | |
| B | 27.0 ± 2.0 | 27.0 ± 1.5 | 99.9 | |
| Na | SRM 1548a Typical Diet | 8132 ± 942 | 8001.9 ± 4.76 | 98.4 |
| Ca | 1967 ± 113 | 161.1 ± 158 | 99.7 | |
| K | 6970 ± 125 | 6858.5 ± 318 | 98.4 | |
| Mg | 580 ± 26.7 | 575 ± 25.7 | 98.1 | |
| Ni | 0.37 ± 0.02 | 0.38 ± 0.04 | 102.3 | |
| Ba | 1.10 ± 0.10 | 1.13 ± 0.09 | 102.5 | |
| Zn | SRM 1567a Wheat Flour | 11.6 ± 0.4 | 11.4 ± 0.2 | 98.2 |
| Mn | 9.4 ± 0.9 | 9.3 ± 0.5 | 98.9 | |
| Fe | 14.1 ± 0.5 | 13.9 ± 0.3 | 98.9 | |
| V | 0.011 ± 0.00 | 0.011 ± 0.00 | 99.4 | |
| Cu | 2.1 ± 0.2 | 2.09 ± 0.4 | 99.7 |