Construction of polymer monolithic columns in polypropylene ink-pen tubes for separation of proteins by cation-exchange chromatography - Nascimento, Fernando Henrique do; Trazzi, Catharina Raquel Lemos; Moraes, Amanda Hanashiro; Velasques, Caryna Moraes; Costa, Diego Miranda de Souza; Masini, Jorge Cesar (Journal of Separation Science, 2020)