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  5. Determination of aluminum fractionation in soil extracts by using ecr modified anion-exchange resin

Determination of aluminum fractionation in soil extracts by using ecr modified anion-exchange resin

来源 :DaLian Internationall Symposia and Exhibition on Chromatogra | 被引量 : 0次 | 上传用户：linxiong12
【摘 要】
：
By using Eriochrome Cyanine R (ECR) modified anion-exchange resin as SPE cartridge coupled with ICP-AES detection, a novel method for determining Al fractionation in soil extracts has been developed.I
【作 者】
：
Luo  M.B Wu  H Bi  S.P 
【机 构】
：
School of Chemistry & Chemical Engineering, State Key Laboratory of Pollution Control & Resource and
【出 处】
：
DaLian Internationall Symposia and Exhibition on Chromatogra
【发表日期】
：
2007年12期
【关键词】
：
Aluminum fractionation Solid phase extraction Modified anion-exchange resin 
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　　By using Eriochrome Cyanine R (ECR) modified anion-exchange resin as SPE cartridge coupled with ICP-AES detection, a novel method for determining Al fractionation in soil extracts has been developed.It possesses the distinct advantages: (1) Good selectivity.The ECR modified SPE shows good recognizing ability for A1 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 the subtraction of Alo-Ala.
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