催化荧光动力学分析法测定微量铜  

Determination of Trace Copper(Ⅱ) with Catalytic Kinetic Spectrofluorimetric Analysis Method

作　　者：高甲友[1] 

机构地区：[1]安徽工业大学化学与化工学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2006年第4期404-406,共3页Journal of Anhui University of Technology（Natural Science）

摘　　要：在氨水-氯化铵溶液(pH=8.50)中,Cu2+能催化过氧化氢、氧化罗丹明6G,使其发生荧光猝灭,据此建立了新的测定微量Cu2+的催化荧光动力学分析法。其检出限为0.2μg/L,线性范围为0.2～4.0μg/L。该方法简便、快速,用于环境水样及铝合金中微量铜的测定,结果令人满意。A catalytic spectrofluorimetric method is proposed for the determination of trace copper（ Ⅱ ） , based on the catalytic effect of copper（ Ⅱ ） for the oxidation of rhodamine 6G by hydrogen peroxide in ammonia-ammonium chloride buffer solution （pH=8.50）. The determination limit for fo copper is 0.2μg/L, and the linear range of the determination is 0.2-40 μg/L. The method is rapid and simple. The method is used to determine trace copper in water and aluminium alloy samples with satisfactory results.

关 键 词：催化动力学分析法 荧光法 铜 罗丹明6G 

分 类 号：O657.31[理学—分析化学]