核分析技术在大气环境研究中的重要作用

Application of nuclear analytical techniques in the atmos pheric environmental study

核分析技术 (尤其是中子活化分析 )以其检测限低、精密度高、不破坏样品等优点成为气溶胶元素分析的最有效手段之一。核分析方法所产生的大量可靠数据对气溶胶领域研究近一二十年来的重大发现起到了不可取代的作用。以中国气溶胶对太平洋生产力乃至全球环境变化的影响为例 ,评述了近 2 0年来气溶胶研究的重大成果和发展 。

Nuclear analysis (mainly neutron activation analysis) is a very powerful technology in elemental anaysis of aerosol with its low detection limit, high accuracy, and the unique advantage of non-destruction of the samples. The vast reliable data produced with nuclear analysis play a non-replaceable role in those great discoveries of the aerosol study. This paper reviewed those surprising finding of aerosol chemistry in the past two decades, especially, the impact of the aerosol from Asia and China on the productivity of the North Pacific and possibly on the global climate. This implies that the nuclear analysis plays an important role in the atmospheric environmental study.