1 H-NMR and GC for detection of adulteration in commercial essential oils of Cymbopogon ssp.
Cristiane Isaac CerceauLuiz C A BarbosaElson S AlvarengaCelia R A MalthaFyaz M D IsmailPublished in: Phytochemical analysis : PCA (2019)
All the methods used proved efficient in detecting adulteration. However, whilst GC-IS provided quantification of constituents of interest, both in pure and adulterated oils, their quantification by NMR was only possible in non-adulterated samples. None of the oils evaluated presented a composition within the threshold established by British Pharmacopoeia quality standards.