In‐tube solid‐phase microextraction (sulfopropyl methacrylate‐co‐ethylene glycol dimethacrylate monolithic capillary) coupled to LC–MS/MS to determine beta amyloid peptides in Alzheimer s cerebrospinal fluid samples - Grecco, Caroline Fernandes; Tumas, Vitor; Hallak, Jaime Eduardo Cecilio; Queiroz, Maria Eugênia Costa (Separation Science Plus, 2023)