摘要
研究了铁 (III) -四乙酰基乙烷 (TAE) /氯仿液液萃取平衡 ,考察了不同因素对萃取率的影响 ,斜率分析法求出被萃取物的组成为Fe(TAE) 2 Ac.建立了测定Fe(III)的萃取光度法 ,并具有较高的选择性 ,用于实际样品中铁含量的测定和混合铁溶液中Fe(III)和Fe(II)的同时测定 ,获得满意的结果 .
The extraction behavior of iron(Ⅲ) with tetraacetylethane (TAE) in non polar solvent(chloroform) was studied. The effects on extraction efficiency were also reported. The results of slope analysis method indicated that the composition of extracted species was 1:2 of iron(Ⅲ) to tetradcetylethane. On the basis of extraction, an extraction spectrophotometric method for the determination of iron was established, with high selectivity. The method was well applied for the determination of iron(III) in aluminum alloy and the selective determination of Fe(III) in Fe(III)-Fe(II) mixture solution, with satisfactory results.
出处
《兰州铁道学院学报》
2000年第1期93-95,共3页
Journal of Lanzhou Railway University
关键词
铁(Ⅲ)
四乙酰基乙烷
萃取平衡
萃取光度法
iron(III)
tetraacetylethane
extraction equilibrium
extraction photometry
