| regioisomer compositions of vaccenic and oleic acid containing triacylglycerols in sea buckthorn (hippophae rhamnoides) pulp oils: influence of origin and weather conditions. | triacylglycerols (tags) 16:1(n-7)/16:1(n-7)/18:1(n-7) (po/po/v) and 16:1(n-7)/16:1(n-7)/18:1(n-9) (po/po/o) in pulp/peel oils of various sea buckthorn (hippophae rhamnoides) subspecies and varieties were separated by reversed-phase high-performance liquid chromatography. the regioisomerism of the tags was determined by tandem mass spectrometry using ammonia supplemented in the nebulizer gas to produce ammonium adducts. the regioisomer compositions of po/po/v (8-24% of povpo) and po/po/o (43-61% ... | 2010 | 19938856 |