Central metabolism 1 Journal Article 1 Research Support, Non-U.S. Gov't 1 Research Support, U.S. Gov't, Non-P.H.S. 1 Sugars 1 ion suppression and enhancement 1 isomer separation 1 mehr ... isotopic labeling 1 liquid chromatography–mass spectrometry 1 metabolite quantification 1 mixed-mode column chromatography 1 oilseeds 1 weniger ...