title: Determination of unmodified methionine and methionine sulphoxide in food proteins by gas-liquid chromatography.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D004044:Dietary Proteins / Q000032:analysis*; D008715:Methionine / Q000031:analogs & derivatives* / Q000032:analysis*
chemical_list: D004044:Dietary Proteins; D008715:Methionine; C013111:methionine sulfoxide