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首页> 外文期刊>Environmental Science & Technology >Stable Carbon Isotope Ratio Analysis of Anhydrosugars in Biomass Burning Aerosol Particles from Source Samples
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Stable Carbon Isotope Ratio Analysis of Anhydrosugars in Biomass Burning Aerosol Particles from Source Samples

机译：源样品中生物质燃烧气溶胶颗粒中脱水糖的稳定碳同位素比分析

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A new method for stable carbon isotope ratio analysis of anhydrosugars from biomass burning aerosol particle source filter samples was developed by employing Thermal Desorption - 2 Dimensional Gas Chromatography - Isotope Ratio Mass Spectrometry (TD-2DGC-IRMS). Compound specific isotopic measurements of levoglucosan, mannosan, and galactosan performed by TD-2DGC- , IRMS in a standard mixture show good agreement with isotopic measurements of the bulk anhydrosugars, carried out by Elemental Analyzer - Isotope Ratio Mass Spectrometry (EA-IRMS). The established method was applied to determine the isotope ratios of levoglucosan, mannosan, and galactosan from source samples collected during combustion of hard wood, softwood, and crop residues. δ~(13)C values of levoglucosan were found to vary between -25.6 and -22.2‰, being higher in the case or softwood. Mannosan and galactosan were detected only in the softwood samples showing isotope ratios of -23.5‰ (mannosan) and - 25.7‰ (galactosan). The isotopic composition of holocellulose in the plant material used for combustion experiments was determined with δ~(13)C values between -28.5 and -23.7‰. The difference in δ~(13)C of levoglucosan in biomass burning aerosol particles compared to the parent fuel holocellulose was found to be -1.89 (±0.37)‰ for the investigated biomass fuels. Compound specific δ~(13)C measurements of anhydrosugars should contribute to an improved source apportionment.
机译：利用热脱附-二维气相色谱-同位素比质谱法（TD-2DGC-IRMS），开发了一种用于稳定燃烧生物质的气溶胶颗粒源过滤器样品中脱水糖碳同位素比的新方法。由TD-2DGC-，IRMS在标准混合物中进行的左旋葡聚糖，甘露聚糖和半乳糖聚糖的化合物比对同位素测定表明，与元素分析仪-同位素比质谱法（EA-IRMS）进行的大量无水糖的同位素测定具有很好的一致性。建立的方法用于确定从硬木，软木和农作物残渣燃烧过程中收集的原始样品中左旋葡聚糖，甘露聚糖和半乳糖聚糖的同位素比。发现左旋葡聚糖的δ〜（13）C值在-25.6和-22.2‰之间变化，在软木情况下更高。仅在软木样品中检测到甘露聚糖和半乳聚糖，其同位素比为-23.5‰（甘露聚糖）和-25.7‰（半乳糖聚糖）。测定用于燃烧实验的植物材料中全纤维素的同位素组成，其δ〜（13）C值在-28.5至-23.7‰之间。对于所研究的生物质燃料，生物质燃烧气溶胶颗粒中左旋葡聚糖的δ〜（13）C与母体燃料全纤维素的差异为-1.89（±0.37）‰。脱水糖的化合物特定δ〜（13）C测量值应有助于改善来源分配。

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  • 来源
    《Environmental Science & Technology》 |2012年第6期|p.3312-3318|共7页
  • 作者

    Xue F. Sang; Iulia Gensch; Werner Laumer; Beatrix Rammer; Chuen Y. Chan; Guenter Engling; Andreas Warmer; Holger Wissel; A Kiendler-Scharr;

  • 作者单位

    School of Environmental Science and Engineering, SunYat-sen University, Guangzhou, China,IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

    IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

    IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

    IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

    School of Environmental Science and Engineering, SunYat-sen University, Guangzhou, China;

    National Tsing Hua University, Hsinchu, Taiwan;

    IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

    IBG-3: Agrosphere, Forschungszentrum Jiilich, Jiilich, Germany;

    IEK-8: Troposphare, Forschungszentrum Jiilich, Jiilich, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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