CE–MS	Capillary electrophoresis mass-spectrometry
Da	Dalton
GC–MS	Gas chromatography coupled to mass-spectrometry
GMD	Golm Metabolome Database
HMDB	Human Metabolome Database
KEGG	Kyoto Encyclopedia of Genes and Genomes
LC–MS	Liquid chromatography coupled to mass spectrometry
MeOX	Methoxyamine
MSTFA	N-Methyl-N-(trimethylsilyl) trifluoroacetamide
m/z	Mass to charge ratio
RI	Retention index