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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Analysis of semi-volatile organic compounds in indoor suspended particulate matter by thermal desorption coupled with gas chromatography/mass spectrometry
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Analysis of semi-volatile organic compounds in indoor suspended particulate matter by thermal desorption coupled with gas chromatography/mass spectrometry

机译：热脱附-气相色谱/质谱法分析室内悬浮颗粒物中的半挥发性有机化合物

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摘要

People are exposed to multiple pollutants, especially indoors. In the perspective of a cumulative risk assessment, a multi-residue analytical method was developed to assess the contamination of indoor suspended particulate matter by 55 semi-volatile organic compounds (SVOCs) including musk fragrances, organochlorines (OCs), organophosphates (OPs), polycyclic aromatic hydrocarbons (PAHs), polybromodiphenylethers (PBDEs), polychlorobiphenyls (PCBs), phthalates and pyrethroids. It is based on thermal desorption (TD) coupled with gas chromatography/mass spectrometry (GC/MS). Once the thermal desorption conditions were optimized, the method was validated in terms of quantification limits and accuracy using a standard reference material (SRM 2585). Instrumental quantification limits were 10pg (some OCs, some pyrethroids, musk fragrances, OPs, PAHs, PBDEs and PCBs), 100pg (phthalates and other OCs) and 1000pg (other pyrethroids) corresponding respectively to method quantification limits of 1, 10, and 100pg/m ~3 for a sampled air volume of 20m ~3. Calibration quadratic curves for ranges of 10-1000, 100-10,000, and 1000-100,000pg, depending on the substance, exhibit determination coefficients above 0.999. Recoveries were between 61 and 96% for chlorinated pesticides, PAHs, PBDEs and PCBs present in the SRM 2585. A test of the method on indoor particulate matter samples (PM _(10)) collected on quartz fiber filters in French dwellings demonstrated its ability to quantify SVOCs from a small amount of PM.
机译：人们暴露于多种污染物，尤其是在室内。从累积风险评估的角度出发，开发了一种多残留分析方法来评估55种半挥发性有机化合物（SVOC）对室内悬浮颗粒物的污染，这些化合物包括麝香香精，有机氯（OC），有机磷酸盐（OPs），多环芳烃（PAHs），聚溴二苯醚（PBDEs），聚氯联苯（PCBs），邻苯二甲酸酯和拟除虫菊酯。它基于热脱附（TD）和气相色谱/质谱（GC / MS）。一旦优化了热脱附条件，就可以使用标准参考材料（SRM 2585）在定量限和准确性方面对方法进行验证。仪器的定量限分别为10pg（一些OC，一些拟除虫菊酯，麝香香精，OPs，PAHs，PBDEs和PCBs），100pg（邻苯二甲酸和其他OC）和1000pg（其他拟除虫菊酯）分别对应于方法定量限1、10和100pg / m〜3，以获得20m〜3的采样空气量。取决于物质，范围为10-1000、100-10,000和1000-100,000pg的校准二次曲线显示出高于0.999的测定系数。 SRM 2585中存在的氯化农药，多环芳烃，多溴二苯醚和多氯联苯的回收率在61％至96％之间。对在法国住宅中石英纤维过滤器上收集的室内颗粒物样品（PM _（10））进行的方法测试表明，该方法具有一定的能力。从少量PM中量化SVOC。

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