Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Recovery study results and reference materials used.
| Metal | Material | Concentration Found (mg/kg) | Certified Concentration (mg/kg) | R (%) |
|---|---|---|---|---|
| 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 | |
| Ni | SRM 1548a Typical Diet | 0.37 ± 0.02 | 0.38 ± 0.04 | 102.3 |
| Pb | 0.044 ± 0.000 | 0.044 ± 0.013 | 98.9 | |
| Cd | SRM 1567a Wheat Flour | 0.026 ± 0.002 | 0.026 ± 0.008 | 98.4 |
