Capillary electrophoretic determination of mercury compounds in different matrixes

A. Gáspár, Cs Páger

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Capillary electrophoresis has been used to separate inorganic (Hg2+) and organic (methyl-, ethyl-, and phenylmercury) mercury compounds as their cysteine complexes. The optimized electrophoretic separation was performed in fused-silica capillary tubing at 25 kV with 25 mm sodium borate buffer (pH 9.3). Identification and quantification of the mercury species at mg L-1 levels was achieved by use of UV detection at 200 nm. The relative standard deviation (n=10) ranged from 0.38 to 0.51% for migration times and from 0.43 to 2.94% for corrected peak areas. Good recovery (>90%) was obtained for all four mercury species in surface waters, and for inorganic mercury and methylmercury in five- to tenfold diluted biofluids (urine, saliva, and cerebrospinal fluid). The LOQ values obtained were too high to be useful for determination of mercury species in real samples.

Original languageEnglish
JournalChromatographia
Volume56
Issue number1
DOIs
Publication statusPublished - Jan 2002

Fingerprint

Mercury Compounds
Mercury
Ethylmercury Compounds
Phenylmercury Compounds
Capillary Tubing
Cerebrospinal fluid
Capillary electrophoresis
Capillary Electrophoresis
Tubing
Fused silica
Surface waters
Saliva
Silicon Dioxide
Cysteine
Cerebrospinal Fluid
Buffers
Urine
Recovery
Water

Keywords

  • Capillary electrophoresis
  • Mercury speciation

ASJC Scopus subject areas

  • Analytical Chemistry
  • Clinical Biochemistry

Cite this

Capillary electrophoretic determination of mercury compounds in different matrixes. / Gáspár, A.; Páger, Cs.

In: Chromatographia, Vol. 56, No. 1, 01.2002.

Research output: Contribution to journalArticle

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