Authors: Luo, Ming-Biao¹; Wu, Hong²; Zhang, Jing³; Shen, Dongxu³; Bi, Shu-Ping³

Source: Separation Science and Technology, Volume 43, Number 8, June 2008 , pp. 2225-2241(17)

Publisher: Taylor and Francis Ltd

Abstract:

By using Eriochrome Cyanine R modified anion-exchange resin as solid phase extraction cartridge coupled with ICP-AES, a novel method for the determination of Al fractionation in soil extracts has been developed. The proposed method possesses the following distinct advantages: (1) Good selectivity. The Eriochrome Cyanine R modified resin shows good recognizing ability for Al fractions. The total monomeric Ala can be adsorbed on the modified resin in the pH range of 6 ∼ 10 by column procedure, and the organic monomeric Alo can be determined by batch procedure rapidly while no adsorption of inorganic monomeric Ali was found in 30 min at least. Thus Ali can be obtained by subtraction between Ala and Alo. Major matrix's interference (Fe, Mn and organic substances) in soil extracts can be avoided. (2) Simple manipulation. The modified resin is very easy to prepare just simply by impregnating the resin with a solution containing Eriochrome Cyanine R. This method has been applied to the determination of five fractions of Al in soil extracts with the experimental results being in agreement with those obtained by Driscoll's method. In addition, Calcon, 8-hydroxyquinoline-5-sulfonic acid, Tiron, Solochrome Violet RS, Pyrocatechol Violet, Xylenol orange, Ferron and Alizarin Red S are also modified to anion-exchange resin as solid-phase extractants. Their conditions to pre-concentrate and determine Al fractionation are investigated, and the adsorptive characteristics of various chelating reagents have been discussed and compared.

Keywords: Aluminum fractionation; Eriochrome cyanine R; Modified anion-exchange resin; Soil extracts; Solid phase extraction

Document Type: Research article

DOI: http://dx.doi.org/10.1080/01496390801940499

Affiliations: 1: School of Chemistry & Chemical Engineering, State Key Laboratory of Pollution Control and Resource Reuse and MOE Key Laboratory for Life Science, Nanjing University, Nanjing, P. R. China,Department of Applied Chemistry, East China Institute of Technology, Jiangxi, P. R. China 2: School of Chemistry & Chemical Engineering, State Key Laboratory of Pollution Control and Resource Reuse and MOE Key Laboratory for Life Science, Nanjing University, Nanjing, P. R. China,Department of Chemistry, Xuzhou Normal University, P. R. China 3: School of Chemistry & Chemical Engineering, State Key Laboratory of Pollution Control and Resource Reuse and MOE Key Laboratory for Life Science, Nanjing University, Nanjing, P. R. China

Publication date: 2008-06-01

Related content

• In this: publication
• By this: publisher
• By this author: Luo, Ming-Biao ;  Wu, Hong ;  Zhang, Jing ;  Shen, Dongxu ;  Bi, Shu-Ping

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers