Solid phase microextraction and LC-MS/MS for the determination of paliperidone after stereoselective fungal biotransformation of risperidone - Bocato, Mariana Zuccherato; Simões, Rodrigo Almeida; Calixto, Leandro Augusto; Gaitani, Cristiane Masetto de; Pupo, Mônica Tallarico; Oliveira, Anderson Rodrigo Moraes de (Analytica Chimica Acta, 2012)