Fabbri Daniele, Marynowski Leszek, Fabiańska Monika J, Zatoń Michał, Simoneit Bernd R T
Laboratory of Environmental Sciences "R. Sartori", CIRSA, University of Bologna, Via S. Alberto 163, 48100 Ravenna, Italy.
Environ Sci Technol. 2008 Apr 15;42(8):2957-63. doi: 10.1021/es7021472.
Using the pyrolysis-gas chromatography-mass spectrometry and off-line pyrolysis/silylation methods for lignites from three Miocene brown coal basins of Poland resulted in the characterization of many organic compounds, including dominant cellulose degradation products such as levoglucosan, 1,6-anhydro-beta-D-glucofuranose, and 1,4:3,6-dianhydroglucopyranose. Levoglucosan is a general source-specific tracer for wood smoke in the atmosphere and recent sediments. The presence of unusually high levels of this compound in brown coal pyrolysates suggests that a portion of this compound concentration in some airsheds may originate from lignite combustion. On the other hand, nonglucose anhydrosaccharides, in particular, mannosan and galactosan, typical of hemicellulose, are not detected in those lignite pyrolysates investigated. This indicates that mannosan and galactosan are better specific tracers for combustion of contemporary biomass in those regions were the utilization of brown coals containing fossilized cellulose is important.
利用热解-气相色谱-质谱联用以及离线热解/硅烷化方法对来自波兰三个中新世褐煤盆地的褐煤进行分析，鉴定出了许多有机化合物，其中包括主要的纤维素降解产物，如左旋葡聚糖、1,6-脱水-β-D-吡喃葡萄糖和1,4:3,6-二脱水葡萄糖。左旋葡聚糖是大气和近期沉积物中木烟的一种通用的源特异性示踪剂。褐煤热解产物中该化合物含量异常高，这表明某些气团中该化合物的部分浓度可能源自褐煤燃烧。另一方面，在那些被研究的褐煤热解产物中未检测到非葡萄糖脱水糖，尤其是半纤维素特有的甘露聚糖和半乳聚糖。这表明在那些化石纤维素含量高的褐煤利用很重要的地区，甘露聚糖和半乳聚糖是当代生物质燃烧更好的特异性示踪剂。
