摘要
将样品中的硫化物用HNO3氧化为硫酸盐后 ,再用HNO3、HF、H2 SO4进一步溶解 ,在 6mol/LHCl介质中用乙酸丁酯萃取镓 ,水反萃取后 ,用火焰原子吸收法测定Ga。该法检出限为 0 .80 μg/mL ,相对标准偏差为 2 .1 % 。
Lead and zinc ore samples were treated with HNO 3,HF and H 2SO 4 successively. Ga(Ⅲ) was then extracted from the solution in HCl medium by butyl acetate. After back extracted by H 2O, Ga(Ⅲ) was measured by AAS. The detection limit of the method was 0 80 μg/mL with precision of 2 1%. The method was applied to the determination of Ga in standard reference samples with satisfictory results.
出处
《分析试验室》
CAS
CSCD
北大核心
2002年第1期24-26,共3页
Chinese Journal of Analysis Laboratory
关键词
镓
铅锌矿
火焰原子吸收法
测定
微量分析
Gallium
Lead and zine ore
Atomic absorption spectrophotometry
