Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (5): 593.

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Determination of Thiourea with Inhibition Action of Electrochemiluminescence

AN Jing-ru1, LIN Jian-guo2   

  1. Department of Chemistry, Fuzhou University, Fuzhou, 350002
  • Received:1991-04-06 Online:1992-05-24 Published:1992-05-24

Abstract: The electrochemiluminescence of thiourea was studied in medium of Na2CO3-NaHCO3-KCl-DHDHD(pH= 9.8) by a self-made apparatus.Thiourea exhibits an evident inhibition action for electrochemiluminescence of DHDHD.It can be used for the determination of microamounts of thiourea.Alinear relationship between the concentration and intensity of light emitted is obtained in the range of 0.005~5 ppm for thiourea.The relative standard deviation is 2%.The mechanism of the electrochemiluminescence of thiourea is also discussed.

Key words: Electrochemiluminescence, Thiourea, Inhibition action

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