建立了一套氢化物发生—原子荧光光谱法测定水中As和Hg的方法 ,研究了酸度、KBH4浓度等条件对灵敏度的影响。在最佳工作条件下 ,As、Hg的检出限分别为 0 .0 0 0 98mg/L和 0 .0 0 0 0 8mg/L。本方法具有操作简便、灵活度高、快速等优点 A method for the determination of As and Hg in water by hydride generation-atomic fluorescence spectrometry was established. The effects of acidity and KBH4 concentration on the sensitivity were studied. Under the best working conditions, the detection limits of As and Hg were 0.000098mg / L and 0.08080mg / L, respectively. The method has the advantages of simple operation, high flexibility, fastness and the like