原子吸收光谱法测定氟碳铈矿与天青石共伴生矿中的锶含量  

Determination of strontium in celestite-associated rare earth ore by flame atomic absorption spectrometry

作　　者：冯兴亮[1] 黄小卫[1] 张国成[1] 龙志奇[1] 崔大立[1] 张永奇[1] 

机构地区：[1]北京有色金属研究总院,稀土材料国家工程研究中心,有研稀土新材料股份有限公司,北京100088

出　　处：《分析试验室》2012年第11期14-17,共4页Chinese Journal of Analysis Laboratory

基　　金：国家发改委重大产业技术开发专项(发改办高技[2009]606号);国家自然科学基金项目(50934004)资助

摘　　要：采用原子吸收光谱法测定氟碳铈矿与天青石共伴生矿中的锶,氟碳铈矿与天青石共伴生矿样品加入无水碳酸钠混合后经高温熔融,水热浸出后过滤水洗去除SO42-,沉淀用稀HNO3溶解后过滤并用纯水多次洗涤,滤液定容,原子吸收光谱法测定锶含量。方法不需分离去除稀土元素可直接测定锶含量,适用于氟碳铈矿与天青石共伴生矿中W(SrO)≤45%氧化锶含量的测定。Determination of strontium in celestite-associated rare earth ore by flame atomic absorption spectrometry （FAAS） was developed. The sample of celestite-associated rare earth ore mixing with the powder of Na2CO3was melted under a high temperature. The melted samples was leached by hydrothermal process. The sulfate of the leaching residue was removed by filtration and water washing. The residue was re-leached with hot dilute nitric acid and filtered with pure water. The filtrate was diluted to the setting volume. Sr in the sample solution was determined by FAAS. The method can be used to determine Sr of samples without removing RE elements. It＇ s suitable for the determination of Sr in celestite-associated rare earth ore with SrO content ≤45%.

关 键 词：锶 原子吸收光谱法 氟碳铈矿 天青石矿 

分 类 号：O657.3[理学—分析化学]