Table 2 Isotopic compositions of biologically relevant elements [129].
Element | Mono isotopic mass (M) | Relative fraction M+0 | Relative fraction M+1 | Relative fraction M+2 | Relative fraction M+4 |
|---|---|---|---|---|---|
H | 1 | 0.999885 | 0.000115 | Â | Â |
C | 12 | 0.9893 | 0.0107 | Â | Â |
N | 14 | 0.99632 | 0.00368 | Â | Â |
O | 16 | 0.99757 | 0.00038 | 0.00205 | Â |
Si | 28 | 0.922297 | 0.046832 | 0.030872 | Â |
S | 32 | 0.9493 | 0.0076 | 0.0429 | 0.0002 |