“…ESI FT-ICR MS showed great advantages in the molecular characterization of bio-crudes and has been widely used for the analysis of pyrolysis bio-crudes from various biomass sources. For example, pyrolysis products from pine pellet and peanut hull, red pine, , willow, loblolly pine, , oak, ,− mixed conifer and scotch broom, lignocellulosic biomass of hardwood, miscanthus, softwood and wheat straw; ,,, invasive freshwater plants, cedar chips, pine wood and sugar cane bagasse, Spirulina platensis , conifer sawdust, defatted cottonseed, rice husk, , sawdust, cellulose, hemicellulose(xylan) and lignin, domestic sewage sludge; hydrothermal liquefaction products from sweet sorghum stalk, , organic waste, isolated cuticle of Agave americana and Capsicum annuum , microcrystalline cellulose, xylan and industrial lignin, kitchen waste, food waste (meat, cheese and fruits), waste sedum plumbizincicola, and microalgae ( Arthrospira platensis and Spirulina platensis ).…”