Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (8): 1189.

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Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry

SU Xing-Guang¹, ZHANG Han-Qi¹, LIANG Feng¹, JIN Qin-Han¹, BAI Suo-Zhu²

1. Department of Chemistry, Jilin University, Changchun 130023, China;
2. Department of Chemistry, Inner Mongolia National Teachers College, Tongliao 028043, China

Received:1998-09-28 Online:1999-08-24 Published:1999-08-24

Abstract

Abstract: Flow injection preconcentration system was introduced into graphite furnace atomic absorption spectrometry in this study. Strongly basic anion exchange fiber was selected as the absorption material, concentrated HCl as complex agent, diluted HCl as eluant. Volume-based elution technique was proposed and applied in this study. Cd, Fe and Zn were determined by the proposed method. The enrichment factors are 19, 17 and 15 (compared with 40 μLsample), the detection limits for the Cd, Pb and Zn are 1.1, 8.2 and 2.6 ng/L, respectively.

Key words: Flow injection analysis, Graphite furnace atomic absorption spectrometry, On-line preconcentration

CLC Number:

O657

TrendMD:

SU Xing-Guang, ZHANG Han-Qi, LIANG Feng, JIN Qin-Han, BAI Suo-Zhu . Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry[J]. Chem. J. Chinese Universities, 1999, 20(8): 1189.

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Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry

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