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橙黄G褪色分光光度法测定痕量铬(Ⅵ)
Determination of Trace Chromium(Ⅳ)Based on Discoloration of Orange G with Spectrophotometry
【摘要】 室温下,硫酸介质中,利用铬( Ⅳ)氧化橙黄 G使其褪色,建立了测定痕量铬(Ⅳ)的新方法.并讨论了反应机理.线性范围为0~3 mg/L,检出限为0.04mg/L.
【Abstract】 A new spectrophotometric method for the determination of trace chromium (VI ) is described. It is based on the discoloring of orange G oxidized by chromium(VI )in sulfuric acid medium under room temperatrue. The reaction mechanism is also discussed. The liner range is 0-3 mg/L. The detection licit is. 0. 04mg/L.
- 【文献出处】 聊城师院学报(自然科学版) ,Journal of Liaocheng Teachers University , 编辑部邮箱 ,2000年03期
- 【分类号】O657.3
- 【被引频次】2
- 【下载频次】58