Analysis of sugars in environmental samples by gas chromatography-mass spectrometry.

摘要: Abstract Many environmental samples contain complex mixtures of organic compounds with different sources, polarities and reactivities. This study reports a method for the analysis both polar/water-soluble apolar in several kinds samples. The analytical consists extraction mixture dichloromethane:methanol (2:1, v/v), silylation using BSTFA ( N,O -bis-(trimethylsilyl)trifluoroacetamide) by gas chromatography–mass spectrometry (GC–MS), common device chemical laboratories. Fifty individual sugar standards, including monosaccharides, alcohols, anhydrosugars, disaccharides trisaccharides, were analyzed determination their fragmentation patterns retention times. Recoveries (at three concentrations) limits detection (LOD) determined standard containing glucose (monosaccharide), sorbitol (sugar alcohol), levoglucosan (anhydrosugar) sucrose (disaccharide), they varied from 68 to 119% 130 360 ng mL −1 , respectively. was used aerosol particle, soil sediment samples, demonstrated its feasibility detecting not only important sugars (e.g., glucose, fructose, inositol, mannitol, sorbitol, levoglucosan, sucrose, mycose), but also large range compound classes other polar components dicarboxylic acids) such as n -alkanes. Therefore, presented here usefulness better understanding sources transport various compartments.