Paper Title:
Determination of Trace Chromium (VI) in Tanning Wastewater by Flow Injection Spectrophotometry
  Abstract

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 Beer’s law is obeyed for Cr(Ⅵ) in the range of 0.03—1.60mg/L. The determination frequency is l00 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.

  Info
Periodical
Advanced Materials Research (Volumes 113-116)
Edited by
Zhenyu Du and X.B Sun
Pages
1732-1734
DOI
10.4028/www.scientific.net/AMR.113-116.1732
Citation
X. Zhao, Z. H. Sui, J. B. Zhang, "Determination of Trace Chromium (VI) in Tanning Wastewater by Flow Injection Spectrophotometry", Advanced Materials Research, Vols. 113-116, pp. 1732-1734, 2010
Online since
June 2010
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$32.00
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