1. The National Institute for Occupational Safety and Health (NIOSH) (2016) Pocket guide to chemical hazards, Methylamine
2. The National Institute for Occupational Safety and Health (NIOSH) (2016) Pocket guide to chemical hazards, Trimethylamine
3. United States Environmental Protection Agency (US EPA) Method 350.1 (1993) Determination of ammonia nitrogen by semi-automated colorimetry
4. The National Institute for Occupational Safety and Health (NIOSH) (1996) NIOSH Manual of Analytical Methods - 6016, Ammonia by IC
5. Wouters S, Haddad PR, Eeltink S (2017) System design and emerging hardware technology for ion chromatography. Chromatographia 80:689–704