微波消解、流动注射-氢化物发生原子荧光光谱法测定三七中硒含量

Determination of Selenium in Notoginseng by Microwave Digestion and Flow Injection-Hydride Generation-Atomic Fluorescence Spectrophotometry

用微波消解、流动注射 -氢化物发生原子荧光光谱法测定三七中硒 ,通过实验选择最优化的测定条件 ,方法的检出限为 0 .30 μg· L-1,相对标准偏差为 1.2 % ,线性范围为 0 - 10 0 μg· L-1,相关系数为0 .9999,回收率为 96 .7%— 10 0 .7%

The content of selenium in notoginseng was determined by microwave digestion and FI hydride generation atomic fluorescence spectrophotometry.The experimental conditions were optimized.The detection limit is 0.30μg·L -1 ,RSD is 1.2%.The linear range of standard curve was 0-100μg·L -1 ( r =0.9999).The recovery of detection is in the range of 96.7%_100.7% for sample.