Determination of Trace Chromium(VI) in Tanning Wastewater by Flow Injection Spectrophotometry

摘要：

In 1.0 mol/L H2SO4 solution,a rapid and simple flow-injection spectrophotometric method has been developed for Cr(VI) determination,based on the violet-red Cr(VI)-diphenylcarbazide chelates formed by reactions.The results show,under optimum conditions,the maximum absorption of the complex is at 540 nm and the detection limits of the method is 0.0136mg/L for Cr(VI) and Beers law is obeyed for Cr(VI) in the range of 0.03-1.60mg/L.The determination frequency is 100 times/h.The relative standard deviation of eleven replicates is less than 4.0％.The method has been applied to the determination of trace Cr(VI) in tanning wastewater with satisfactory results.

关键词： flow-injection spectrophotometry Cr(VI) tanning wastewater diphenylcarbazide

作者: Xin Zhao Zhihui Sui Jingbin Zhang

作者单位: School of Light Industry and Textile Engineering,Qiqihar University,Qiqihar 161006,China

会议类型: 国际会议

会议名称: 2010 International Conference of Environment Materials and Environment Management(2010年环境材料与环境管理国际学术会议 EMEM 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1732-1734

在线出版日期: 2010-07-24（万方平台首次上网日期，不代表论文的发表时间）