title: A system for the toxicological analysis of drugs in biological specimens.
mesh_terms: D000143:Acids / Q000302:isolation & purification; D000468:Alkalies / Q000302:isolation & purification; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002725:Chloroform / Q000032:analysis; D002849:Chromatography, Gas; D004987:Ethers; D005470:Fluorometry; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D009020:Morphine / Q000652:urine; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000652:urine; D012995:Solubility; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet; D014116:Toxicology / Q000379:methods*
chemical_list: D000143:Acids; D000468:Alkalies; D004987:Ethers; D007202:Indicators and Reagents; D004364:Pharmaceutical Preparations; D012997:Solvents; D009020:Morphine; D002725:Chloroform