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Issue 1
Jan.  2013
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LI Zi-cheng, TANG Wan-rong, ZHU Jin-kun, WANG Qing-jiang, HE Pin-gang, FANG Yu-zhi. Simultaneous determination of phenolic pollutants in wastewater using CE-AD[J]. Journal of East China Normal University (Natural Sciences), 2013, (1): 128-138.
Citation: LI Zi-cheng, TANG Wan-rong, ZHU Jin-kun, WANG Qing-jiang, HE Pin-gang, FANG Yu-zhi. Simultaneous determination of phenolic pollutants in wastewater using CE-AD[J]. Journal of East China Normal University (Natural Sciences), 2013, (1): 128-138.

Simultaneous determination of phenolic pollutants in wastewater using CE-AD

  • Received Date: 2012-01-01
  • Rev Recd Date: 2012-04-01
  • Publish Date: 2013-01-25
  • A method based on capillary electrophoresis coupled with amperometric detection (CE-AD) was developed for the simultaneous determination of phenols: 2,4-dichlorophenol, p-nitrophenol, o-cresol, m-cresol and p-cresol. The effects of working electrode potential, pH and concentration of running buffer, separation voltage and injection time on CE-AD were investigated. Under the optimum conditions, the aim analytes could be separated in buffer solution of Na2HPO4-NaOH at pH 11.38 within 25 min. A 300 m diameter carbon disk electrode generated good current responses at +0.78 V ( vs SCE) for all analytes. The current responses were linear with concentrations over three orders of magnitude with detection limits at 10-7mol/L (S/N=3) and the recoveries were in the range of 94.0%~107.0%. This method could be successfully applied to the analysis of actual sample from coking plants with satisfactory results.
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