[A new fluorometric method for the determination of drugs in biological material (author's transl)].

A description is given of a new method for fluorometric determination of drugs in biological material. The assay is based on photochemical transformation of non-fluorescent compounds in fluorophors by short-wave UV light. The pharmacokinetics of the 2-[4-(4'-chlorophenoxy)-phenoxy]-propionic acid (HCG 004) serves as an example to demonstrate the usefulness of this method; reference is also made to analogously successful studies of other drugs.