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.
Trace metal content in ppb (μg/L) determined by ICP-MS (n = 2)
| Fraction | Al | Ca | Fe | Cu | Ni | Zn |
|---|---|---|---|---|---|---|
| Load | 166000a | 47.4 ± 0.8 | 274 ± 45 | 32 ± 11 | 18 ± 15 | 57 ± 25 |
| Wash | 14000a | 63 ± 8 | 94 ± 3 | 12 ± 5 | 76 ± 94 | 36 ± 5 |
| Elute 1 | 7709 ± 1281 | 1392 ± 208 | 203 ± 20 | 47 ± 12 | 19 ± 6 | 137 ± 21 |
| Elute 2 | 10175 ± 872 | 745 ± 24 | 427 ± 192 | 46 ± 5 | 37 ± 17 | 134 ± 23 |
a values determined by ICP-OES, n = 1
