Scanning electrochemical detection in capillary electrophoresis

Sandra S. Ferris, Guoan Lou, Andrew G. Ewing

Research output: Contribution to journalArticlepeer-review

Abstract

Scanning electrochemical detection has been combined with capillary electrophoresis to increase the resolving power for closely eluting solutes. This detection mode has been characterized and provides voltammetric information for easily oxidized solutes with linear detection over concentrations in the 10−3 to 10−5 M range. Detection limits for catechols range from 360 amol to 740 amol (2.3 μM to 6.6 μM concentrations). Finally, two neutral solutes, catechol and tryptophan, co‐elute under zone electrophoresis conditions, but are resolved with scanning detection.

Original languageEnglish (US)
Pages (from-to)263-268
Number of pages6
JournalJournal of Microcolumn Separations
Volume6
Issue number3
DOIs
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Filtration and Separation

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