title: Determination of free hydrogen cyanide in river water by a solvent-extraction method.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003124:Colorimetry; D003486:Cyanides; D006856:Hydrogen Cyanide / Q000032:analysis*; D008722:Methods; D012997:Solvents; D014876:Water Pollution / Q000032:analysis*
chemical_list: D003486:Cyanides; D012997:Solvents; D006856:Hydrogen Cyanide