Magnetic restricted-access carbon nanotubes for SPME to determine cannabinoids in plasma samples by UHPLC-MS/MS - Cruz, Jonas Carneiro; Rosa, Mariana Azevedo; Morés, Lucas; Carasek, Eduardo; Crippa, José Alexandre de Souza; Figueiredo, Eduardo Costa; Queiroz, Maria Eugênia Costa (Analytica Chimica Acta, 2022)