Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (2): 219.

• Articles • Previous Articles     Next Articles

A Research for the Catalysis Kinetics Analysis with Chemical Relaxation Method

HUANG Zheng-Hua, LIN Zhi-Xin, CAI Ru-Xiu, ZHANG Ke   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1996-12-24 Online:1998-02-24 Published:1998-02-24

Abstract: A chemical relaxation kinetics analysis(CRKA) method has been proposed for the first time. The basic theory has been proved systematically and was applied to determine trace copper. Stopped-flow equipment was used for analyzing the system of Fe(Ⅲ)-S2O32- catalyzed by Cu(Ⅱ). We studied the influence of pH value, medium and reagent on relaxation parameter (1/τ) and obtained the linear relation of 1/τ and concentration. The analytical results of synthetic samples show that the CRKA method has an obvious advantage.

Key words: Chemical relaxation, Catalysis kinetics analysis, Copper

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