Extraction of carboxylic acids as adducts with dibenzo-18-crown-6.
D001555:Benzene Derivatives / Q000032:analysis; D004988:Ethers, Cyclic / Q000032:analysis*; D010404:Penicillin V / Q000032:analysis*; D012459:Salicylates / Q000032:analysis*; D013053:Spectrophotometry
D001555:Benzene Derivatives; D004988:Ethers, Cyclic; D012459:Salicylates; D010404:Penicillin V