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Common element ratios obtained from 45.000 formulas comprising the Wiley mass spectral database for the mass range 30 Da – 1500 Da |
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| Element ratios |
Common range (covering 99.7%) |
Extended range (covering 99.99%) |
Extreme range (beyond 99.99%) |
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| 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 |
Kind and Fiehn BMC Bioinformatics 2007 8:105 doi:10.1186/1471-2105-8-105 |
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