title: Extraction of carboxylic acids as adducts with trioctylphosphine oxide.
mesh_terms: D000473:Alkanes; D002264:Carboxylic Acids / Q000032:analysis*; D002626:Chemistry, Pharmaceutical; D002725:Chloroform; D008712:Methicillin / Q000032:analysis; D010654:Phenylbutyrates / Q000032:analysis; D010720:Phosphines; D012459:Salicylates / Q000032:analysis
chemical_list: D000473:Alkanes; D002264:Carboxylic Acids; D010654:Phenylbutyrates; D010720:Phosphines; D012459:Salicylates; D002725:Chloroform; D008712:Methicillin