钼（Ⅵ）－硫酸肼－金莲橙Ⅳ体系催化动力学示波极谱法测定钼  

Catalytic Kinetic Oscillopolarography for the Determination of Molybdenum-Mo(Ⅵ)-(NH_2NH_2) 2SO_4-Methyl Orange Ⅳ System

作　　者：蒋治良[1] 牛雪梅[1] 王力生[1] 刘晓安[1] 骆翠琳 覃诚真[1] 

机构地区：[1]广西师范大学

出　　处：《广西科学》1996年第3期16-18,共3页Guangxi Sciences

基　　金：国家自然科学基金广西自然科学基金广西师大青年基金

摘　　要：利用酸性介质中钼（Ⅵ）对硫酸肼－金莲橙Ⅳ体系缓慢反应的催化作用，以氢氧化钠溶液中止反应，建立了一个动力学示波极谱测定钼的新方法。方法的线性范围为０．０１μｇ／ｍＬ～０．２μｇ／ｍＬ，已用于钢样中痕量钼的测定，结果满意。In acidic medium, Mo (Ⅵ) has strong catalytic effect on the slow redox reaction of (NH2NH2)2SO4 and methyl orange Ⅳ, and the catalytic reaction can be quenched with NaOH solution based on the experimental facts, a new catalytic oscillopolarographic method determining 0.01μg/mL-0. 2μg/mL Mo(Ⅵ) has been proposed. The method has been applied to the determination of ultrace amounts of molybdenum in steel sample with satifactory results.

关 键 词：钼 金链橙 示波极谱法 测定 硫酸肼 催化动力学 

分 类 号：O614.612[理学—无机化学]