Abstract A novel ultrasound assisted extraction procedure was developed prior to the determination of heterocyclic aromatic amines by ultra-high performance liquid chromatography-tandem mass spectrometric detection. Airborne particulate matter PM2.5 and PM10 samples (n = 34) were collected during the spring season from urban residential emission sites, as well as from biomass burning. The organic compounds were extracted from the quartz fiber filter by a quick ultrasound assisted methanol-based extraction. Linearity of the method was in the range 0.58 ng g−1 to 50 ng g−1 with correlation coefficients (R2) from 0.993 to 0.999. The limits of detection resulted to be between 0.19 ng g−1 and 3.27 ng g−1. The relative standard deviations varied from 5.4 to 8.5 (n = 3). The recoveries ranged from 83% to 109% for all of the analytes. Concentrations of the analytes in PM2.5 were between 4.1 ng m−3 (2.07 ng g−1) and 240.9 ng m−3 (120.5 ng g−1), meanwhile in PM10, were from 23.0 ng m−3 (11.4 ng g−1) to 355.1 ng m−3 (176.2 ng g−1). The proposed methodology resulted simple, rapid and accurate for its application to the determination of heterocyclic aromatic amines in airborne particulate matter from different emission sources.

中文翻译：

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超高效液相色谱-串联质谱法测定不同排放源空气中颗粒物（PM 2.5 和PM 10 ）中的杂环芳胺

摘要 在通过超高效液相色谱-串联质谱检测法测定杂环芳胺之前，开发了一种新的超声辅助提取方法。空气中颗粒物 PM2.5 和 PM10 样本（n = 34）是在春季从城市住宅排放点以及生物质燃烧中收集的。通过快速超声辅助甲醇提取法从石英纤维过滤器中提取有机化合物。该方法的线性范围为 0.58 ng g-1 至 50 ng g-1，相关系数 (R2) 为 0.993 至 0.999。结果检测限在 0.19 ng g-1 和 3.27 ng g-1 之间。相对标准偏差从 5.4 到 8.5 (n = 3) 不等。所有分析物的回收率范围为 83% 至 109%。PM2.5 中分析物的浓度介于 4.1 ng m-3 (2.07 ng g-1) 和 240.9 ng m-3 (120.5 ng g-1) 之间，同时在 PM10 中，从 23.0 ng m-3 (11.4 ng g-1) 到 355.1 ng m-3 (176.2 ng g-1)。该方法简单、快速、准确，适用于测定来自不同排放源的空气悬浮颗粒物中的杂环芳胺。