Chinese Journal of Applied Chemistry ›› 1987, Vol. 0 ›› Issue (4): 61-65.

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STUDIES ON POLAROGRAPHIC ADSORPTIVE COMPLEX WAVE OF COPPER-DMG-Na2B4O7 SYST EM

Li Qilong, Liu Jingpeng   

  1. Department of Chemistry, Beijing Normal University
  • Received:1986-07-15 Revised:1986-09-05 Published:1987-08-10 Online:1987-08-10

Abstract: In a supporting electrolyte containing 2?10-4M DMG, 0.025M Na2B4O7 at pH=9.4, a sensitive adsorptive complex wave of copper-DMG was obtained by using single-sweep polarography. The peak potential is -0.34V(vs.SCE). The peak height changes linearly with the concentration of copper in the range of 5?10-8 to 3?10-6M. The method has been applied successfully for the trace copper determination in waste water.