Essential oil-based dispersive liquid-liquid microextraction for the determination of N,N-dimethyltryptamine and β-carbolines in human plasma: a novel solvent-free alternative - Silveira, Gabriela de Oliveira; Lourenço, Felipe Rebello; Pego, Ana Miguel Fonseca; Santos, Rafael Guimarães dos; Rossi, Giordano Novak; Hallak, Jaime Eduardo Cecilio; Yonamine, Maurício (Talanta, 2021)