Hollow fiber–liquid phase microextraction of barbiturates in liver samples - Menck, Rafael Almeida; Oliveira, Carolina Dizioli Rodrigues de; Lima, Diógenes Saulo de; Goes, Ligia Endo; Leyton, Vilma; Pasqualucci, Carlos Augusto; Muñoz, Daniel Romero; Yonamine, Maurício (Forensic Toxicology, 2013)