TY - CPAPER TI - Optimization of MEPS extraction conditions for analysis of parabens in human urine samples by liquid chromatography PY - 2013 AU - Jardim, Valeria C. AU - Melo, Lidervan de P. AU - Queiroz, Maria Eugênia Costa T2 - International Symposium on Advances in Extraction Technologies (EXTECH) J2 - Book of Abstracts PP - João Pessoa ER -