采用带气溶胶电荷检测的高效液相色谱法测定大气气溶胶中的左旋葡聚糖。
Determination of levoglucosan in atmospheric aerosols using high performance liquid chromatography with aerosol charge detection.
作者信息
Dixon Roy W, Baltzell Gregor
机构信息
Chemistry Department, California State University, 6000 J Street, Sacramento, CA 95819-6057, USA.
出版信息
J Chromatogr A. 2006 Mar 24;1109(2):214-21. doi: 10.1016/j.chroma.2006.01.021. Epub 2006 Jan 31.
A sensitive method for analysis of levoglucosan (1,6-anhydro-beta,d-glucopyranose) and other monosaccharide anhydrides, compounds present in biomass combustion smoke, was investigated employing high-performance liquid chromatography (HPLC) with recently developed aerosol charge detection. Aerosol charge detection involves the conversion of the column effluent to an aerosol, which is charged to produce a current. Use of a cation-exchange column and a pure water eluent was found to separate levoglucosan and mannosan from other aerosol components with a detection limit of about 90 ng mL(-1) for levoglucosan or 5 ng injected. This method was demonstrated by successful analysis of aerosol filter samples from three locations.
采用高效液相色谱（HPLC）结合最新开发的气溶胶电荷检测技术，研究了一种用于分析左旋葡聚糖（1,6-脱水-β-D-吡喃葡萄糖）及其他单糖酐（生物质燃烧烟雾中存在的化合物）的灵敏方法。气溶胶电荷检测包括将柱流出物转化为气溶胶，对其充电以产生电流。结果发现，使用阳离子交换柱和纯水流动相能够将左旋葡聚糖和甘露聚糖与其他气溶胶成分分离，左旋葡聚糖的检测限约为90 ng mL⁻¹或进样量为5 ng。通过对来自三个地点的气溶胶过滤器样品进行成功分析，验证了该方法。
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