Often People use liquid NH3 as a standard for Nitrogen NMR. To convert such chemical shifts to the IUPAC Standard nitromethane subtract 380.2 ppm for 15N chemical shifts . |
Standard | chem. shift | Standard | chem. shift | |||
Nitromethane | ppm | liquid Ammonia | ppm | |||
NH4Cl | ppm | HNO3 (conc) | ppm |