次灵敏线火焰原子吸收法测定磷矿石中氧化镁含量

Determination of Magnesium Oxide Content in Phosphate Ore by FAAS/Secondary Sensitivity Detection Line Method

研究了用镁次灵敏线202.5 nm测定磷矿石中氧化镁的含量。回收率为98.1%～102.3%,标准偏差≤0.03,变异系数≤1.9%,线性范围2～50μg/mL。该方法简单快速,测定含量范围广。

FAAS/secondary sensitivity detection line method on determining the magnesium oxide content in the phosphate was researched.The recovery was 98.1～102.3%,standard deviation was less than 0.03,coefficient of variation was less than 1.9%,the range of linearity was 2～50 μg/ml.The method was easy to use and took little time,and has a large scope of application.