V (Ⅴ)-KIO4-甲基红体系动力学光度法测定微量钒

journal6 ›› 2010, Vol. 31 ›› Issue (2): 94-96.

V (Ⅴ)-KIO₄-甲基红体系动力学光度法测定微量钒

(吉首大学化学化工学院,湖南吉首 416000)

出版日期:2010-03-25 发布日期:2012-04-18
通讯作者: 段友构(1954- ),男,教授.E-mail:dyj11015@sina.com.
作者简介:石美莲(1985- ),女,吉首大学化学化工学院硕士研究生,主要从事光分析及微量元素研究
基金资助:
湖南省科技计划项目(2006GK4012)

Determination of Trace Vanadium in Vanadium-ExtractionWaste Water by Catalytic Kinetic Photonmetry-V(Ⅴ)-KIO₄-Methyl Red System

(College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China)

Online:2010-03-25 Published:2012-04-18

摘要/Abstract

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0.64～3.20 μg/mL范围内与log(A₀/A)呈线性关系,检出限为3.75×10^-3 μg/mL.该方法用于提钒废水中钒的测定,结果满意.

关键词： 钒, 动力学光度法, 高碘酸钾, 甲基红, 提钒废水

Abstract: 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^-3 μg/mL.The proposed method has been used satisfactorily in the determination of vanadium in vanadium-extraction waste water.

Key words: Vanadium(Ⅴ);catalytic kinetic spectrophotometry;KIO₄ methyl red;vanadium-extraction , waste water

石美莲, 段友构, 颜文斌, 任从莲. V (Ⅴ)-KIO₄-甲基红体系动力学光度法测定微量钒[J]. journal6, 2010, 31(2): 94-96.

SHI Mei-Lian, DUAN You-Gou, YAN Wen-Bin, REN Cong-Lian. Determination of Trace Vanadium in Vanadium-ExtractionWaste Water by Catalytic Kinetic Photonmetry-V(Ⅴ)-KIO₄-Methyl Red System[J]. journal6, 2010, 31(2): 94-96.

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V (Ⅴ)-KIO₄-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)-KIO₄-Methyl Red System

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