Separation of organic and inorganic arsenic species by capillary zone electrophoresis

A. Gáspár, Cs Sógor, J. Posta

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Abstract

Capillary zone electrophoresis has been used to separate arsenite, arsenate, dimethylarsinic acid, and phenyl-, p-aminophenyl-, and o- aminophenylarsinic acids. Identification and quantification of the arsenic species at mg L-1 levels was possible by use of direct UV detection at 200 nm. The relative standard deviation (n = 7) ranged from 0.97 to 1.52% for migration times and from 2.08 to 4.31% for peak areas. A method for rapid separation of inorganic arsenic species was also developed; by use of this method arsenite and arsenate could be separated within 2 min.

Original languageEnglish
Pages (from-to)S135-S138
JournalChromatographia
Volume51
Issue number1
Publication statusPublished - Jan 1 2000

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Keywords

  • Arsenic speciation
  • Capillary zone electrophoresis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Clinical Biochemistry
  • Organic Chemistry

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