Trace Metal Profile of Butyl Rubber (Grey) Lyo/Serum Stopper Prepared by Three-Acid Digestion
| Analyte | Result (μg/g) | Analyte | Result (μg/g) |
|---|---|---|---|
| Ag | <0.1 | Na | 87 |
| Al | 0.13% | Nb | <0.1 |
| As | 3.0 | Nd | 1.7 |
| Au | <0.1 | Ni | 1.0 |
| B | 1.7 | P | 43 |
| Ba | 3.6 | Pb | 1.1 |
| Be | <0.1 | Pd | <0.1 |
| Bi | <0.1 | Pr | 0.4 |
| Ca | 640 | Pt | <0.1 |
| Cd | <0.1 | Re | <0.1 |
| Ce | <1 | Rh | <0.1 |
| Co | 0.2 | Ru | <0.1 |
| Cr | 2.6 | Sb | <0.1 |
| Cs | <0.1 | Sc | <0.1 |
| Cu | 2.3 | Se | <0.1 |
| Dy | 0.4 | Si | 14 |
| Er | 0.2 | Sm | 0.3 |
| Eu | <0.1 | Sn | 0.7 |
| Fe | 325 | Sr | 25 |
| Ga | 0.1 | Ta | <0.1 |
| Gd | 0.4 | Tb | <0.1 |
| Ge | <0.1 | Te | <0.1 |
| Hf | <0.1 | Th | 0.2 |
| Ho | <0.1 | Ti | 0.81% |
| In | <0.1 | Tl | <0.1 |
| Ir | <0.1 | Tm | <0.1 |
| K | 117 | U | 0.1 |
| La | 2.0 | V | 1.3 |
| Li | 0.7 | W | <0.1 |
| Lu | <0.1 | Y | 1 |
| Mg | 0.93% | Yb | <0.1 |
| Mn | 7.8 | Zn | 81 |
| Mo | <0.1 | Zr | 0.7 |