地表水中汞测定方法的比较研究

Comparison study on mercury determination method in surface water

汞是一种全球循环的持久性剧毒污染物,对水环境及人类健康有较大危害。目前,地表水中汞测定的方法主要有热原子荧光法、冷原子荧光法及冷原子吸收法,这三种方法在汞测定方面均具有各自的特点。文中通过大量实验数据归纳每种方法的优化条件,对这三种方法进行对比分析,获得检测辽河流域地表水中汞最适的方法。

Mercury is a persistent and extremely toxicity pollutant in the global cycle and has great damage to water environment and human health. At present, there are mainly three methods of the determination of mercury in surface water, which are the thermal atomic fluorescence method, the cold atomic fluorescence method and cold atomic absorption method. The three methods have respective characteristics in mercury determination.Based on the large number of experimental data, the optimization conditions of each method are summarized.Through the comparative analysis of three methods, the most suitable method of mercury determination in surface water of Liaohe river basin is obtained