原子吸收光谱法测定粉煤灰中氧化镁  

Determination of Magnesium Oxide in Fly Ash by Atomic Absorption Spectrometry

作　　者：杜明辉[1] 刁建志[2] 高振国[2] 彭政[2] 

机构地区：[1]石家庄铁道学院教务处,石家庄市北二环东路17号050043 [2]石家庄铁道学院材料科学与工程分院,石家庄市北二环东路17号050043

出　　处：《光谱实验室》2010年第3期1047-1049,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：河北省教育厅自然科学基金项目资助

摘　　要：采用火焰原子吸收光谱法测定粉煤灰中氧化镁的含量。用氢氟酸-高氯酸混合酸分解样品,以氯化锶消除其他元素的干扰。本方法操作简便、再现性好、灵敏度高,氧化镁浓度在0.10—2.00μg/mL之间线性关系良好,检出限可达0.02%,适用于粉煤灰中氧化镁的测定。Magnesium oxide （MgO） in fly ash was determined by flame atomic absorption spectrometry（FAAS）.The sample was dissolved in a mixed acid composed of HF and HClO4,and other elements could be eliminated by SrCl2.This method is characterized with easily operation,good reproductivity and high sensitivity.Also it represents a good linear relationship with MgO of 0.10—2.00μg/mL.The detection limit is 0.02%.This method can be used to the determination of MgO in fly ash.

关 键 词：火焰原子吸收光谱法 粉煤灰 氧化镁 氯化锶 

分 类 号：O657.31[理学—分析化学]