节点文献
FeⅢ-SCN~-体系薄层树脂相光度法测定矿石中铁
Determination of Iron in Ore with SCN~- by Thin Layer Resin Phase Photometry
【摘要】 提出了利用薄层树脂相通过光度法测定痕量铁的新方法。铁离子与硫氰酸钾形成红色络合物 ,将其富集在H+型 732 # 阳离子交换树脂上 ,通过制作成薄层直接测定。本法选择性好 ,精密度高 (RSD %=1 2 2 %~ 4 2 % ) ,回收率 97 4%~ 99% ,用于矿石中铁的测定 ,结果满意。
【Abstract】 A new method for the determination of trace iron with SCN - by thin layer resin phase photometry is reported in this paper. Iron(Ⅲ)reacts with KSCN to form a complex, which is accumulated on the thin layer cation exchange resin and determined by photometry. Photometric determination of iron in ore samples by this method with satisfactory selectivity and precision(RSD=1.22%-4.2%, recovery: 97.4%-99%).
【基金】 河南省自然科学基金
- 【文献出处】 冶金分析 ,METALLURGICAL ANALYSIS , 编辑部邮箱 ,2000年03期
- 【分类号】O657.32
- 【被引频次】12
- 【下载频次】55