title: Analysis of illicit diamorphine preparations by high-pressure liquid chromatography.
mesh_terms: D002110:Caffeine / Q000032:analysis; D002845:Chromatography / Q000379:methods*; D002852:Chromatography, Ion Exchange; D004340:Drug Contamination / Q000032:analysis; D003932:Heroin / Q000032:analysis*; D013058:Mass Spectrometry; D011312:Pressure; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D013331:Strychnine / Q000032:analysis; D013997:Time Factors
chemical_list: D002110:Caffeine; D003932:Heroin; D013331:Strychnine