Table 2 Common element ratios obtained from 45.000 formulas comprising the Wiley mass spectral database for the mass range 30 Da – 1500 Da
Element ratios | Common range (covering 99.7%) | Extended range (covering 99.99%) | Extreme range (beyond 99.99%) |
|---|---|---|---|
H/C | 0.2–3.1 | 0.1–6 | < 0.1 and 6–9 |
F/C | 0–1.5 | 0–6 | > 1.5 |
Cl/C | 0–0.8 | 0–2 | > 0.8 |
Br/C | 0–0.8 | 0–2 | > 0.8 |
N/C | 0–1.3 | 0–4 | > 1.3 |
O/C | 0–1.2 | 0–3 | > 1.2 |
P/C | 0–0.3 | 0–2 | > 0.3 |
S/C | 0–0.8 | 0–3 | > 0.8 |
Si/C | 0–0.5 | 0–1 | > 0.5 |