title: Gas chromatographic-mass spectral characteristics of aporphine and tetrahydroprotoberberine alkaloids.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification; D001060:Aporphines / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D007202:Indicators and Reagents; D013329:Structure-Activity Relationship
chemical_list: D000470:Alkaloids; D001060:Aporphines; D007202:Indicators and Reagents