TI - Three-phase liquid phase microextraction (LPME) for diazepam, nordiazepam and oxazepam in urine PY - 2011 AU - Bairros, André Valle de AU - Yonamine, Maurício T2 - Science and Pharmaceutical Technology Meeting of the Pharmaceutical Sciences Faculty of the University of São Paulo J2 - Brazilian Journal of Pharmaceutical Sciences SN - 1984-8250 PP - São Paulo VL - 47 SP - 49 res. FCF002 ER -