| 亮绿SF-过氧化氢体系催化动力学光度法测定痕量钒 |
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| 引用本文： | 陈宗保,谢建鹰.亮绿SF-过氧化氢体系催化动力学光度法测定痕量钒[J].岩矿测试,2009,28(4):397-398. |
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| 作者姓名： | 陈宗保 谢建鹰 |
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| 作者单位： | 上饶师范学院化学系,江西,上饶,334001 |
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| 基金项目： | 江西省自然科学基金，上饶师范学院科研基金 |
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| 摘 要： | 在硫酸介质中,痕量钒(Ⅴ)能明显催化过氧化氢氧化亮绿SF褪色,通过研究该反应的最佳实验条件和动力学参数,建立了测定痕量钒的新催化动力学光度法。该方法选择性强、操作简便、快速,其线性范围为0.0~40ng/mL,检出限为5.2ng/L。方法用于水样及茶叶中痕量钒(Ⅴ)的测定,结果满意。
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| 关 键 词： | 亮绿SF 过氧化氢 催化动力学光度法 钒 |
| 收稿时间： | 2008/11/1 0:00:00 |
| 修稿时间： | 2009/1/24 0:00:00 |
Determination of Trace Vanadium by Catalytic Kinetic Spectrophotometry in Light Green SF-hydrogen Peroxide System |
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| CHEN Zong bao and XIE Jian ying.Determination of Trace Vanadium by Catalytic Kinetic Spectrophotometry in Light Green SF-hydrogen Peroxide System[J].Rock and Mineral Analysis,2009,28(4):397-398. |
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| Authors: | CHEN Zong bao and XIE Jian ying |
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| Institution: | Department of Chemistry, Shangrao Normal College;Department of Chemistry, Shangrao Normal College |
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| Abstract: | Based on the catalytic effect of vanadium on the discoloring reaction of light green SF oxidized by H2 02 in medium of sulfuric acid, a new method for the determination of vanadium(Ⅴ) was proposed. The optimum determination condition and kinetic parameters have been investigated. The detection limit is 5.2 ng/L with linear range of 0.0 ～40 ng/mL for vanadium(Ⅴ). The method has been applied to the determination of trace vanadium in water and tea samples with satisfactory results. |
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| Keywords: | light green SF hydroyen peroxide catalytic kinetic speetrophotometry vanadium |
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