Species distribution of polymeric aluminium-ferrum--timed complexation colorimetric analysis method of Al-Fe-Ferron
The effects of the colorimetric buffer solutions were investigated while the two colorimetric reactions of A1-ferron complex and Fe-ferron complex occurred individually, and the effects of the testing wavelength and the pH of the solutions were also investigated. A timed complexation colorimetric analysis method of A1-Fe-ferron in view of the total concentration of {A1+Fe} was then established to determine the species distribution of polymeric Al-Fe. The testing wavelength was recommended at 362 nm and the testing pH value was 5. Based on the ratios of nAl/nFe, the standard adsorption curves of the polymeric Al-Fe solutions were derived from the experimental results. Furthermore, the solutions'composition were various in both the molar nAl/nFe ratios, i.e. 0/0, 5/5, 9/1 and 0/10, and the concentrations associated with the total [A1+Fe] that ranged from 10-5 to 10-4 mol/L.
作 者： HU Yong-you TU Chuan-qin WU Hong-hai 作者单位： HU Yong-you,TU Chuan-qin(College of Paper Environmental Engineering, South ChianUniversity of Technology,)WU Hong-hai(Technology,)
刊 名： 环境科学学报(英文版) ISTIC SCI 英文刊名： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2001 13(4) 分类号： X132 TQ01651 关键词：