Soliz Rojas, Dulce LucyPaniagua González, GemaMuñoz Arnanz, JuanBravo Yagüe, Juan CarlosFernández Hernando, PilarGarcinuño Martínez, Rosa Mª2024-06-142024-06-142024-05-15Dulce L. Soliz, Gema Paniagua González, Juan Muñoz-Arnanz, Juan Carlos Bravo-Yagüe, Pilar Fernández Hernando, Rosa María Garcinuño Martínez, Identification and morphological characterization of different types of plastic microparticles, Heliyon, Volume 10, Issue 11, 2024, e30749, https://doi.org/10.1016/j.heliyon.2024.e307492405-8440https://doi.org/10.1016/j.heliyon.2024.e30749https://hdl.handle.net/20.500.14468/22646This is an Accepted Manuscript of an article published by Elsevier in "Heliyon, Volume 10, Issue 11, 2024, e30749", available at: https://doi.org/10.1016/j.heliyon.2024.e30749Este es el manuscrito aceptado del artículo publicado por Elsevier en "Heliyon, Volume 10, Issue 11, 2024, e30749", disponible en línea: https://doi.org/10.1016/j.heliyon.2024.e30749The knowledge of the polymeric composition of microplastics (MPs) is interesting because offers useful information on the resistance, durability, and degradability of these materials, also allowing progress in the control of this contamination. However, there is currently a lack of reliable standardized methods for the identification, and characterization of the plastic microparticles. This work uses different techniques in a complementary manner for the identification, and characterization of MPs that more frequently are found in the environment. A total of 10 types of plastics were collected (polystyrene (PS), polyethylene terephthalate (PETE), polyethylene (PE), high- and low-density polyethylene (HDPE and LDPE, respectively), polyvinyl chloride (PVC), polypropylene (PP), polytetrafluoroethylene (PTFE), Polyamide (PA, Nylon 6,6) and poly-carbonate (PC)) and their chemical identification were analyzed by reflectance-attenuated infrared (FTIR-ATR). Furthermore, the samples were observed using light microscopy, and scan-ning electron microscopy (SEM). Also, staining with 12 different dyes was performed to improve the identification of microplastics. The results of this study revealed that PETE, PE, HDPE and LDPE, whose SEM images exhibited smoothness and flat uniformity of their surface, were not (or less) susceptible to adsorb staining solutions while PP, PA, PVC, and PTFE, were capable of adsorbing the dye solutions.enAtribución-NoComercial-SinDerivadas 4.0 Internacional23 Químicaartículomicroplasticspolymer identification SEMFTIR-ATR spectroscopy light microscopy staining dyes