RT info:eu-repo/semantics/article T1 Biopolymers in sorbent-based microextraction methods A1 Pacheco-Fernández, Idaira A1 Allgaier-Díaz, Diego W. A1 Mastellone, Giulia A1 Cagliero, Cecilia A1 Díaz Díaz, David A1 Pino, Verónica K1 Biopolymer K1 Microextraction K1 Chitosan K1 Cellulose K1 Alginate K1 Agarose K1 Solid-phase extraction K1 biopolímeros K1 microextracción K1 Quitosano K1 Celulosa K1 Alginato K1 Agarosa K1 Extracción en fase sólida AB Since the introduction of the Green Analytical Chemistry guidelines, there has been an increasingconcern on the sustainability of sample preparation approaches, particularly if considering theyconstitute the most time-consuming step of the analytical method and the main source of laboratorywastes. Among the alternatives explored, it is important to highlight the miniaturization of the extractionmethods, which has been accompanied by the seek of greener solvents and sorbents. Biopolymersemerge as potential candidates to be used as sorbents in microextraction schemes given their biodegradability,versatility, and easily functionalization. This review offers an overview on biopolymers(chitosan, cellulose, alginate, and agarose) in sorbent-based microextraction approaches, paying attentionto the preparation of the sorbent and the format in which biopolymers are incorporated into thesorbent/device, thus implying a specific microextraction approach, their role in the resulting sorbentmaterial, and the reported analytical applications, covering environmental, food, and bioclinical analysis. PB Elsevier YR 2020 FD 2020 LK http://riull.ull.es/xmlui/handle/915/21489 UL http://riull.ull.es/xmlui/handle/915/21489 LA en NO Agencia Canaria de Investigación, Innovación y Sociedad de la Información DS Repositorio institucional de la Universidad de La Laguna RD 29-mar-2024