title: Photometric determination of anions with the use of tetrahexylammonium picrate as a liquid anion exchanger.
mesh_terms: D002712:Chlorides; D007474:Ion Exchange; D007477:Ions / Q000032:analysis*; D008433:Mathematics; D008722:Methods; D010851:Picrates; D000644:Quaternary Ammonium Compounds
chemical_list: D002712:Chlorides; D007477:Ions; D010851:Picrates; D000644:Quaternary Ammonium Compounds