Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (9): 1381.

• Articles • Previous Articles     Next Articles

Catalysis-fluorescence Determination of Trace Iron(Ⅲ)Using Alizarin Red

YU Ying1, NIE Rui-Hua2, HUANG Jian-Feng1, XIE Shi-Tao1   

  1. 1. Applied Chemistry Institute, Nanchang University, Nanchang, 330047;
    2. Department of Mechanical and Electronic Engineering, Nanchang University, Nanchang, 330047
  • Received:1995-08-15 Online:1996-09-24 Published:1996-09-24

Abstract: Anew catalysis-fluorescence determination method of trace iron(Ⅲ)has been de scribed by reagent alizarin red, at λexem=380 nm/450 nm.The experimental conditions have been optimized by multiobject punish function simplex method, which are 0.1%alizarin red 4.2 mL, 0.5 mol/L HCl 3.3 mL,saturated solution KIO4 5.7mL,temp.85 ℃,time:12.5 min, the detection limit is 0.52 ng/mL.This method is applied to determine trace iron (Ⅲ)in water sample and alloy samples with satisfactory results.

Key words: Catalysis-fluoremetry, Alizarin red, Iron(Ⅲ)

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