Levoglucosan, a tracer for cellulose in biomass burning and atmospheric particles
Levoglucosan, a tracer for cellulose in biomass burning and atmospheric particles
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DOI：
10.1016/s1352-2310(98)00145-9
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发表时间：
1999-01-01
影响因子：
5
通讯作者：
Cass, GR
中科院分区：
文献类型：
--
作者：
Simoneit, BRT;Schauer, JJ;Cass, GR
生物质燃烧产生的烟雾颗粒的主要有机成分是纤维素分解产生的单糖衍生物，通常伴有较少量的直链、脂肪族和含氧化合物以及植物蜡、树脂/树胶和其他生物聚合物产生的萜类化合物。左旋葡聚糖和纤维素的相关降解产物可用作大气细颗粒物样品中生物质燃烧排放物存在的具体和一般指示化合物。这使得有可能在全球范围内跟踪此类排放。还有其他化合物（例如，amyrones、木栓酮、脱氢松香酸和来自萜类化合物和来自木质素-丁香醛、香草醛、丁香酸、香草酸的热衍生物），其是生物质燃料类型特有的来自生物质燃烧的烟雾中的另外的关键指标。单糖衍生物（如左旋葡聚糖）被提议作为生物质燃烧排放物中纤维素的特定指标。左旋葡聚糖以如此高的浓度排放，以至于可以在距离原始燃烧源相当远的地方检测到。(C)1998爱思唯尔科技有限公司版权所有。
The major organic components of smoke particles from biomass burning are monosaccharide derivatives from the breakdown of cellulose, accompanied by generally lesser amounts of straight-chain, aliphatic and oxygenated compounds and terpenoids from vegetation waxes, resins/gums, and other biopolymers. Levoglucosan and the related degradation products from cellulose can be utilized as specific and general indicator compounds for the presence of emissions from biomass burning in samples of atmospheric fine particulate matter. This enables the potential tracking of such emissions on a global basis. There are other compounds (e.g. amyrones, friedelin, dehydroabietic acid, and thermal derivatives from terpenoids and from lignin-syringaldehyde, vanillin, syringic acid, vanillic acid), which are additional key indicators in smoke from burning of biomass specific to the type of biomass fuel. The monosaccharide derivatives (e.g. levoglucosan) are proposed as specific indicators for cellulose in biomass burning emissions. Levoglucosan is emitted at such high concentrations that it can be detected at considerable distances from the original combustion source. (C) 1998 Elsevier Science Ltd. All rights reserved.