title: Separation and determination of macrocyclic pyrrolizidine alkaloids of the otonecine type present in the edible plant Petasites japonicus by reversed-phase high-performance liquid chromatography.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D013058:Mass Spectrometry; D010945:Plants, Edible / Q000032:analysis*; D011763:Pyrrolizidine Alkaloids / Q000302:isolation & purification*
chemical_list: D011763:Pyrrolizidine Alkaloids