Rifampicin determination in plasma by stir bar-sorptive extraction and liquid chromatography - Balbão, Marina Salviato; Bertucci, Carlo; Bergamaschi, Mateus Machado; Queiróz, Regina Helena Costa; Malfará, Wilson Roberto; Dreossi, Sonia Aparecida Carvalho; Mello, Lidervan de Paula; Queiroz, Maria Eugênia Costa (Journal of Pharmaceutical and Biomedical Analysis, 2010)