摘要
研究了硫酸介质中 ,铁 (Ⅲ )催化过氧化氢氧化百里酚蓝而使其褪色的新指示反应 ,建立了一种催化动力学光度法测痕量铁 (Ⅲ )的新方法 ,其灵敏度达到 3.4 7× 10 -10 g/mL ,测定范围是 0～ 0 .4 μgFe3 + /2 5mL .用于水样、人发中痕量铁 (Ⅲ )的测定 。
The oxidation of thymol blue by hydrogen peroxide in sulfuric acid medium using Fe(Ⅲ) as catalyst was investigated in this paper. A new method for the determination of trace iron(Ⅲ) has been set up, The sensitivity of method is 3.47×10 -10 g/mL, The range of determination of iron(Ⅲ) is 0～0.4 μgFe 3+ /25mL. The method has been applied to the determination of trace iron(Ⅲ) in water samples, hair samples with satisfactory results.
出处
《辽宁大学学报（自然科学版）》
CAS
2003年第1期70-73,共4页
Journal of Liaoning University：Natural Sciences Edition
