摘要
对苯二酚在碱性条件下对Cu催化H2O2和NaSCN的化学振荡反应(以下简称铜体系)的干扰,考察了在2.24×10-6-5.45×10-5mol·L-1和2.24×10-6-2.87×10-5mol·L-1范围内,对苯二酚的浓度与振荡反应的周期的改变△T1、△T2之间的关系 结合铜体系振荡反应的机理,提出了对苯二酚干扰振荡反应的机理。
An analytical method for the determination Hydroquinone of by its perturbation on the copper(Ⅱ)-catalyzed oscillating reaction between hydrogen peroxide and sodium thiocyanate is proposed . The reaction is implemented in a steady closed system and changes in the oscillation period on each perturbation are proportional to the Hydroquinone concentration both from 2.24×10^(-6) to 5.45×10^(-5) mol·L^(-1)and from 2.24×10^(-6) to 2.87×10^(-5) mol·L^(-1), respectively. The method feature good precision due to the fact that the closed system has a noticeable stabilization. Some aspects of the interaction of Hydroquinone with the oscillation chemical system are discussed. This is first reported determination of Hydroquinone based on an oscillating reaction in the closed system.
出处
《西北民族大学学报（自然科学版）》
2003年第4期19-22,共4页
Journal of Northwest Minzu University(Natural Science)
基金
西北师范大学科技创新工程资助项目(KJCX-01)
