V(Ⅴ)-KIO_4-甲基红体系动力学光度法测定微量钒  

Determination of Trace Vanadium in Vanadium-ExtractionWaste Water by Catalytic Kinetic Photonmetry-V(Ⅴ)-KIO_4-Methyl Red System

作　　者：石美莲[1] 段友构[1] 颜文斌[1] 任从莲[1] 

机构地区：[1]吉首大学化学化工学院,湖南吉首416000

出　　处：《吉首大学学报（自然科学版）》2010年第2期94-96,共3页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省科技计划项目(2006GK4012)

摘　　要：研究了在柠檬酸介质中,钒(Ⅴ)强烈地催化高碘酸钾氧化甲基红的褪色反应,建立了催化动力学光度法测定微量钒(Ⅴ)的方法.钒质量浓度在0.64~3.20μg/mL范围内与log(A0/A)呈线性关系,检出限为3.75×10-3μg/mL.该方法用于提钒废水中钒的测定,结果满意.Based on the catalytic effects of Vanadium(Ⅴ) on the discoloring reaction of methyl red oxidized by KIO4 and methyl red in a medium of citric acid,a new method for the determina-tion of vanadium by catalytic kinetic spectro-photometry was proposed.Linear relationship between log(A0/A) and the concentration of vanadium is observed in the range of 0.64~3.2 μg/mL.The limit of detection is 3.75×10-3μg/mL.The proposed method has been used satisfactorily in the determination of vanadium in vanadium-extraction was...

关 键 词：钒 动力学光度法 高碘酸钾 甲基红 提钒废水 

分 类 号：O657.3[理学—分析化学]