电感耦合等离子体光谱法测定锂辉石选矿产品中铌和钽
ICP-AES DETERMINATION OF Nb AND Ta IN PRODUCTS OF OREDRESSING OF SPODUMENE
摘 要
用碘化铵灼烧,氢氟酸-硫酸分解矿样,不经分离,电感耦合等离子体光谱法测定锂辉石选矿产品中铌和钽(以其五氧化物表示).Nb2O5的检出限为8.4×10-9g,Ta2O5的检出限为1.1×10-8g.相对标准偏差:铌为0.8%,钽为1.2%,测定范围为5×10-4%~20.00%.
锂辉石
铌
钽
ICP-AES
Spodumene
Nb
Ta
Abstract
ICP-AES determination of Nb and Ta in products from oredressing of spodumene was reported in this paper.The mineral sample was ignited with ammonium iodide and the ignition residue was decomposed with HF-H2SO4 mixture,and evaporated to about 1 mL.After the addition of tartaric acid,the solution was made up to 50 mL and was ready for use in ICP-AES determination.Determination limit of Nb and Ta (as Nb2O5 and Ta2O5) were tested,giving DL.for Nb2O5 as 8.4×10-9g and for Ta2O5 as 1.1×10-8g.Pricision of the method was also tested and RSD′s obtained were 0.8% for Nb2O5 and 1.2% for Ta2O5.Range of determination was reported as from 5×10-4% to 20.00% for both elements.
中图分类号 O657.31
所属栏目 工作简报
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收稿日期 2005/12/13
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备注刘卫(1957-),男,四川人,高级工程师,主要从事等离子体光谱分析、荧光光谱分析及实验室管理工作.
引用该论文: LIU Wei,LUAN Ya-lan,WU Li-ping. ICP-AES DETERMINATION OF Nb AND Ta IN PRODUCTS OF OREDRESSING OF SPODUMENE[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(9): 715～716
刘卫,栾亚兰,仵丽萍. 电感耦合等离子体光谱法测定锂辉石选矿产品中铌和钽[J]. 理化检验－化学分册, 2006, 42(9): 715～716
被引情况:
【1】杜梅,许涛, "电感耦合等离子体原子发射光谱法测定铌精矿中铌、锰、钛",理化检验－化学分册 50, 317-319(2014)
【2】王影,沈亮亮,李艳杰,覃事栋, "2,3,7-三羟基-9-水杨基荧光酮分光光度法测定痕量铌",理化检验－化学分册 49, 725-727(2013)
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参考文献
【1】李连仲.岩石矿物分析:第一分册[M].3版.北京:地质出版社,1990．
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