摘要
试验了不经分离铁等杂质,用铬天青S光度法直接测定硅铁中的A l的条件。主要考查了铁、抗坏血酸及缓冲溶液对试验的影响。方法线性范围:2—35μg/50mL,对于硅铁中铝含量在0.1%—2%的酸溶铝的测定,方法简便、稳定,回收率95%—105%,结果满意。
The aluminum in ferrosilcon was determined by speetrophotometry with chrome azurol S without separation of iron and other elements. A interferences such as iron ,ascorbic acid and buffer solution was described. The method has been applied to determine A1 dissolved in acid of ferrosilcon with convenient and stabilization in the range of 2-35μg/50mL with recovery of 95%-105% and satisfactory results.
出处
《光谱实验室》
CAS
CSCD
2008年第3期398-400,共3页
Chinese Journal of Spectroscopy Laboratory
关键词
分光光度法
铝
硅铁
铬天青S
Spectrophotometry
Aluminum
Ferrosilcon
Chrome Azurol S
