@misc{misc610aba30, title = {Stereoselective determination of the major ibuprofen metabolites in human urine by SPME and HPLC: optimization of the extraction conditions}, author = {Oliveira, Anderson Rodrigo Moraes de and Santana, Fernando José Malagueño de and Bonato, Pierina Sueli}, year = {2005}, booktitle = {Internacional of Congress of Pharmaceutical Science (CIFARP} }