Capillary Electrophoresis with indirect amperometric detection

Teresa M. Olefirowicz, Andrew G. Ewing

Research output: Contribution to journalArticlepeer-review

Abstract

The use of indirect amperometric detection with capillary electrophoresis is demonstrated. The system consists of a porous glass coupler which allows amperometric detection at a carbon fiber electrode placed in the end of the capillary. 3,4-Dihydroxybenzylamine is added to the buffer system as a continuously eluting electrophore. Indirect amperometric detection in 9-μm I.D. capillaries provides detection limits as low as 380 attomole for the amino acid arginine. Finally, both direct and indirect amperometric detection can be accomplished simultaneously.

Original languageEnglish (US)
Pages (from-to)713-719
Number of pages7
JournalJournal of Chromatography A
Volume499
Issue numberC
DOIs
StatePublished - Jan 19 1990

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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