Determination of underivatized amino acid delta(13)C by liquid chromatography/isotope ratio mass spectrometry for nutritional studies: the effect of dietary non-essential amino acid profile on the isotopic signature of individual amino acids in fish. (Rapid communications in mass spectrometry : RCM, 2008)

(untitled) - Mccullagh, J; Gaye-Siessegger, J; Focken, U