摘要
提出了地质样品经半熔法分解后,8-羟基喹啉沉淀干扰组分,过量的8-羟基喹啉用四氯化碳萃取分离,在六次甲基四胺缓冲液中测定Ce(Ⅲ)-ALC-F^-络合吸附波。并对标准物质中F^-进行测定,其测定值与推荐值吻合。方法的RSD为5.6％,检出限为0.6μg·g^(-1)。
A new oscilloscopic polarographic to determine trace fluorine in geological samples using Ce( I )-ALC-F^- system was established. The samples were decomposed by the semi-fusion and interfering components were separated by precipitation with 8-quinolinol. The linear range is 5×10^(-9)~9.5×10^(-8)?μ?g · g^(-1), The relative standard deviation is 5. 6%. The proposed method has been appied to determine F^- in standard samples with satisfactory results.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
1998年第10期455-456,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
地矿部重点科技项目资助课题
关键词
示波极谱法
氟
地质样品
分析
Polarographic analysis, Fluorine, Geological sample
