Preconcentration of Rare Earth Elements with 8-Hydroxyquinoline-5-sulfonic Acid Chelated Cellulose Filter Prior to Determination by Inductively Coupled Plasma Atomic Emission Spectrometry

Chemical Research in Chinese Universities ›› 2000, Vol. 16 ›› Issue (3): 208-212.

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Preconcentration of Rare Earth Elements with 8-Hydroxyquinoline-5-sulfonic Acid Chelated Cellulose Filter Prior to Determination by Inductively Coupled Plasma Atomic Emission Spectrometry

LIU Chun-ming¹, GAO Xiu-qing¹, DU Yao-guo², GUO Yi-hang¹

1. Department of Chemistry, Changchun Normal College, Changchun 130032, P. R. China;
2. Department of Environment Sciences, Jilin University, Changchun 130023, P. R. China

Received:2000-02-21 Online:2000-08-24 Published:2011-10-22
Supported by:
Supported by the National Natural Science Foundation of China.

Abstract

Abstract: 8-Hydroxyquinoline-5-sulfonic acid, covalently bound to filter cellulose, was used for preconcentrating trace rare earth element(REE) ions from complex matrices and matrix separation, respectively. Multi-REE ions were preconcentrated on the column filled with 8-hydroxyquinoline-5-sulfonic acid cellulose filter and analysed by ICP-AES after being eluted with dilute HNO₃. In the given pHrange, alkali and alkaline earth metal ions can be separated as matrix elements; a high concentration factor is obtained and the eluates can be measured without interference. The usefulness of the method is shown by the control analyses of standard reference materials.

Key words: 8-Hydroxyquinoline-5-sulfonic acid cellulose filter, Preconcentration, REE, ICP-AES

LIU Chun-ming, GAO Xiu-qing, DU Yao-guo, GUO Yi-hang . Preconcentration of Rare Earth Elements with 8-Hydroxyquinoline-5-sulfonic Acid Chelated Cellulose Filter Prior to Determination by Inductively Coupled Plasma Atomic Emission Spectrometry[J]. Chemical Research in Chinese Universities, 2000, 16(3): 208-212.

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Preconcentration of Rare Earth Elements with 8-Hydroxyquinoline-5-sulfonic Acid Chelated Cellulose Filter Prior to Determination by Inductively Coupled Plasma Atomic Emission Spectrometry

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