Abstract The composition of atmospheric aerosols (particulate matter - PM) has been studied through the quantification of major elements in filter samples by laser induced breakdown spectroscopy (LIBS). After the collection of PM on over quartz filters, the samples were directly analyzed without the need of wet chemistry. The spectral analysis was performed by calibration free method (CF-LIBS), which also avoids using calibration standards. The major mineral elements found in PM10 and PM2.5 samples were Al, Ca, Fe, Mg, K, Na and Si. Furthermore, elements such as C, O and H, which form part of the organic matter and/or water, were also identified and quantified. In addition to CF-LIBS fastness and feasibility, it has been demonstrated that CF-LIBS is a complementary technique for the characterization of PM.

中文翻译：

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利用免校准激光诱导击穿光谱法定量分析矿物颗粒物的主要成分

摘要 通过激光诱导击穿光谱 (LIBS) 对过滤器样品中的主要元素进行量化，研究了大气气溶胶（颗粒物 - PM）的组成。在石英过滤器上收集 PM 后，无需湿化学即可直接分析样品。光谱分析是通过无校准方法 (CF-LIBS) 进行的，这也避免了使用校准标准。PM10 和 PM2.5 样品中发现的主要矿物元素是 Al、Ca、Fe、Mg、K、Na 和 Si。此外，还鉴定和量化了构成有机物和/或水的一部分的元素，例如 C、O 和 H。除了 CF-LIBS 的牢度和可行性外，CF-LIBS 是表征 PM 的一种补充技术。