Chromium Speciation Using Ion Chromatography-Atomic Absorption System with On-Line Preconcentration

W. L. Fong, J. C.Gaston Wu

研究成果: 雜誌貢獻期刊論文同行評審

16 引文 斯高帕斯(Scopus)

摘要

A method using Ion chromatography-atomic absorption system (IC-AA) with on-line preconcentrat ion unit Is deve loped for the speciation of chromium In aqueous samples. Both Cr(I I I) and Cr(UI) species are pre-treated with sodium salt of ethylenediaminetetraacetic acid (EDTA) i n consecutive steps. The treated samples can then be injected into an on-line preconcentration unit followed by ion chromatographic separation with UU or selective flame AA detection. Both chromium species can be separated within 10 minutes, and the method Is applicable for aqueous samples with ppm levels of chromium.

原文英語
頁(從 - 到)931-941
頁數11
期刊Spectroscopy Letters
24
發行號7-8
DOIs
出版狀態已發佈 - 1991 八月 1

ASJC Scopus subject areas

  • 分析化學
  • 原子與分子物理與光學
  • 光譜

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