title: Gas chromatographic detection of ecgonine and benzoylecgonine in cocaine.
mesh_terms: D001565:Benzoates / Q000032:analysis / Q000302:isolation & purification; D002264:Carboxylic Acids / Q000032:analysis / Q000302:isolation & purification; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D003042:Cocaine / Q000032:analysis* / Q000592:standards; D008722:Methods; D012825:Silicon; D013696:Temperature; D014326:Tropanes / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D001565:Benzoates; D002264:Carboxylic Acids; D014326:Tropanes; D003042:Cocaine; D012825:Silicon