| adduct | Common adducts |
| contam | Contaminants in MS |
| describe | Get the compound information |
| E_iso | Element isotopes |
| Iso_mass | Isotope labelled molecular mass |
| Iso_mz | Isotope labelled molecular mass |
| mass | molecular mass |
| mz | accurate ion mass |
| ppm | mass accuracy |
| what | search for m/z in from the idiom metabolomics database |