Paper Title:
Study on Measurement of Chromium Content in Ramie through UV Spectrophotometry
  Abstract

In this paper, UV spectrophotometry was used to test the chromium content of bast fiber of ramie and diphenylcarbazide (DPC) was used as color reagent. The optimal technology was: dropping volume of phosphoric acid 0.4~0.6 mL, DPC content 2.0~4.0 mL and coloration time 5-10 minutes. The results showed that complexes were formed from Cr (VI) ions and DPC under phosphoric acid condition. There was a maximum positive absorption peak at the 540nm. Cr (VI) concentration (in the range of 0.004~1.000 mgL-1) and the absorbance (A) of complex obeyed the Lambert-Beer law.

  Info
Periodical
Advanced Materials Research (Volumes 332-334)
Chapter
Chapter 12: Materials and its Applications
Edited by
Xiaoming Qian and Huawu Liu
Pages
1914-1917
DOI
10.4028/www.scientific.net/AMR.332-334.1914
Citation
J. Q. Li, Q. S. Pan, R. Q. Zhang, X. J. Zhou, "Study on Measurement of Chromium Content in Ramie through UV Spectrophotometry", Advanced Materials Research, Vols. 332-334, pp. 1914-1917, 2011
Online since
September 2011
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Price
$32.00
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