保健食品中硒的微波消解-原子荧光光谱测定法

目的建立微波消解一原子荧光光谱法测定保健食品中硒的含量。方法通过优化实验条件，用原子荧光光谱法对保健食品中的硒含量进行测定。结果硒测定线性范围为10．0～50．0μg/L，检出限为3．6μg／kg，相对标准偏差小于5％，回收率在92．0％～102．5％之间。结论方法简单、准确、精密度好，适用于保健食品中硒的测定。

Microwave digest-atomic fluorescence spectrometry for the determination of selenium in health food

[ Objective] To established a methofor the determination of selenium in health food by atomic fluorescence spectrometry with microwave digestions. [ Methods] Optimizing the test condition ,the sample was determined for selenium in health food by a- tomic fluorescence spectrometry. [ Results] Linear range for the determination was between 10.0 μg/L to 50.0 μg/L. The detec- tion limits was 3.6 μg/kg. The relative standard deviation （RSD） was less than 5%. The recoveries were 92.0%-102.5%. [ Conclusion ] The method is simple, accurate and precise. It is suitable for the determination of Sselenium in health food.