| Element | Limit of detection (µg/g) |
Major elements | Al | 2.0 |
Si | 1.0 | |
P | 0.3 | |
K | 0.9 | |
Ca | 0.8 | |
Fe | 2.0 | |
Trace elements | Ti | 0.3 |
V | 0.2 | |
Mn | 0.2 | |
Zn | 0.5 | |
Ga | 0.4 | |
Rb | 0.2 | |
Sr | 0.2 | |
Y | 0.2 | |
Zr | 0.2 | |
Nb | 0.2 | |
Mo | 0.2 | |
Sn | 0.3 | |
La | 1.5 | |
Hf | 1.0 | |
Ta | 0.8 | |
Th | 0.3 | |
U | 0.3 |