Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (11): 1522.

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Enrichment of Gold(Ⅲ) by Polyaniline Modified Electrode

LI Gen-Xi, FANG Hui-Qun, CHEN Hong-Yuan   

  1. Department of Chemistry, Nanjing University, Nanjing, 210008
  • Received:1993-01-30 Revised:1993-04-16 Online:1993-11-24 Published:1993-11-24

Abstract: Reaction of the coordinating preconcentration of gold(Ⅲ) by polyaniline modified electrode was studied and verf ied using the methods of cyclic voltammetry, FTIRand scanning electron micrograph.On the basis of the experiments, the optimums reaction conditions were obtained.The cathodic peak current was proportional to the concentration of Au (Ⅲ) in the range of 5.07 × 10-6-5.07× 10-5 mol/Lunder this optimum condition.So this method could be used for the determination of gold in real samples.

Key words: Polyaniline, Chemically modified electrode, Gold

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