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铝是大气颗粒物重要组分之一,是大气污染源项分析中的重要元素。本实验利用激光诱导等离子体光谱技术(LIPS)对Al_2O_3气溶胶中Al元素的特征光谱进行了探测(图1)。结果表明,Al的396.152nm处特征谱线出现的概率最高且周围干扰项少,因而396.152nm适合作为Al的测量线。
Aluminum is one of the important components of atmospheric particulate matter and is an important element in the analysis of source of atmospheric pollution. In this experiment, the characteristic spectra of Al elements in Al 2 O 3 aerosols were detected by laser-induced plasma spectroscopy (LIPS) (Fig. 1). The results show that the characteristic line of Al at 396.152 nm has the highest probability of occurrence and the less perturbation around it, so that 396.152 nm is suitable as the measurement line of Al.