[目的]建立微波消解—氢化物原子吸收光谱法测定保健食品中的硒含量。[方法]通过采用微波消解对样品进行前处理,用流动注射氢化物发生原子吸收光谱仪测定保健食品中痕量硒。[结果]标准回收率达到91%~104%。[结论]氢化物发生原子吸收测定保健食品中硒有较高的灵敏度,准确度,适合保健品中的硒的测定。 [Objective] To establish a method for determination of selenium in health food by microwave digestion-hydride atomic absorption spectrometry. [Method] The samples were pretreated by microwave digestion, and the trace selenium in health food was determined by flow injection hydride generation atomic absorption spectrometry. [Result] The standard recovery rate reached 91% ~ 104%. [Conclusion] The hydride generation atomic absorption spectrometry has higher sensitivity and accuracy in the determination of selenium in health food.