Off-line Supercritical Fluid Extraction and Capillary Gas Chromatography of Pyrrolizidine Alkaloids in Senecio Species

Off-line Supercritical Fluid Extraction and Capillary Gas Chromatography of Pyrrolizidine Alkaloids in Senecio Species Capillary gas chromatography—fourier transform infrared spectroscopy of pyrrolizidine alkaloids of senecio inaequidens DC. Supercritical Fluid Extraction and Liquid Chromatography-Electrospray Mass Analysis of Vinblastine from Catharanthus roseus. Supercritical fluid extraction of michellamines A and B from ancistrocladus korupensis leaves Selectivity in the extraction of 2- quinolone alkaloids with supercritical CO2 Efficient Extraction of Pyrrolizidine Alkaloids from Plants by Pressurised Liquid Extraction – A Preliminary Study HPLC-Electrospray Ionization-MS-MS Analysis of Cephalotaxus harringtonia Leaves and Enhancement of the Extraction Efficiency of Alkaloids Therein by SFE Capillary Gas Chromatography/Positive and Negative Ion Chemical Ionization Mass Spectrometry on Pyrrolizidine Alkaloids of Senecio inaequidens Using Ammonia and Hydroxyl Ions as the Reagent Species Capillary Gas Chromatography/Positive and Negative Ion Chemical Ionization Mass Spectrometry on Pyrrolizidine Alkaloids of Senecio inaequidens Using Ammonia and Hydroxyl Ions as the Reagent Species Supercritical Carbon Dioxide Extraction of Volatile Components from Two<i>Eucalyptus</i>Species (<i>E. spathulata</i>and<i>E. microtheca</i>)