A simple fractionation method and GPC analysis of organosolv extracts obtained from lignocellulosic materials - Andreo-Martínez, Pedro; Ortiz-Martínez, Víctor Manuel; García-Martínez, Nuria; Hernández-Fernández, Francisco José; de los Ríos, Antonia Pérez; Quesada-Medina, Joaquín (Biomass Conversion and Biorefinery: Processing of Biogenic Material for Energy and Chemistry, 2021)