采用氢化物原子荧光法测定工业废水中的汞,重点讨论了不同水样的预处理方法。对于基体比较简单的废水,适合采用溴化试剂处理水样;对于有机污染比较严重的工业废水,适合采用重铬酸钾-过硫酸钾处理水样。经过处理后的样品采用氢化物原子荧光法测定汞,操作步骤简单,测定结果误差较小,回收率为96%~105%。 Hydride generation atomic fluorescence spectrometry was applied to the determination of mercury in industrial wastewater. The pretreatment methods of different water samples were discussed. For the relatively simple matrix of wastewater, suitable for the treatment of water samples brominated reagents; For more serious organic pollution of industrial wastewater, suitable for use of potassium dichromate - potassium persulfate water samples. The treated sample was measured by hydride atomic fluorescence spectrometry, the operation steps were simple, and the determination error was small with the recovery of 96% -105%.