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| Metals | Metalloids | Metal chelators |
|---|---|---|
| Mercury and organomercurials | Arsenic and organoarsenics | Nitrilotriacetate (NTA) |
| Selenium and organoseleniums | Silicon and organosilicanes | |
| Tin and organotins | ||
| Uranium | ||
| Chromium |
The most recent list of these is found at http://umbbd.ahc.umn.edu/metals.html.
