Institut National de l'Environnement industriel et des Risques (INERIS), Parc technologique Alata BP2, 60550 Verneuil en Halatte, France.
Sci Total Environ. 2013 Apr 15;450-451:31-8. doi: 10.1016/j.scitotenv.2013.01.068. Epub 2013 Mar 1.
A quick easy cheap effective rugged and safe (QuEChERS) like extraction procedure is presented for the measurement of polycyclic aromatic hydrocarbons (PAHs) associated to particulate matter from ambient air or combustion process. The procedure is based on a short mechanical agitation (vortex during 90 s) using a small volume of acetonitrile (7 ml) as extraction solvent. Equivalent extraction efficiencies were obtained when comparing the QuEChERS and the traditional pressurized solvent extraction (ASE) procedures for ambient air and emission (wood combustion) filter samples. The developed QuEChERS extraction protocol was validated with the analysis of a standard reference material (NIST SRM 1649a, urban dust). By comparison to other extraction methods including ASE, the simplicity of the QuEChERS protocol allows to minimize experimental errors, to decrease about a factor 5 the cost per extraction and to increase the productivity per working day by a 10-fold factor. This paper constitutes the first report on the applicability of a QuEChERS-like approach for the quantification of PAHs or other organic compounds in atmospheric particulate matter.
一种快速、简便、廉价、有效、耐用且安全（QuEChERS）的提取方法，用于测量环境空气中或燃烧过程中与颗粒物相关的多环芳烃（PAHs）。该方法基于短时间的机械搅拌（涡旋 90 秒），使用小体积的乙腈（7 毫升）作为提取溶剂。对于环境空气和排放（木材燃烧）过滤器样品，比较 QuEChERS 和传统加压溶剂萃取（ASE）方法，得到了等效的萃取效率。使用标准参考物质（NIST SRM 1649a，城市灰尘）对开发的 QuEChERS 提取方案进行了验证。与包括 ASE 在内的其他提取方法相比，QuEChERS 方案的简单性可以最大限度地减少实验误差，将每个提取的成本降低约 5 倍，并将每个工作日的产量提高 10 倍。本文首次报道了 QuEChERS 方法在大气颗粒物中多环芳烃或其他有机化合物定量分析中的适用性。
