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 language | English (US) |
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Pages (from-to) | 713-719 |
Number of pages | 7 |
Journal | Journal of Chromatography A |
Volume | 499 |
Issue number | C |
DOIs | |
State | Published - Jan 19 1990 |
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Biochemistry
- Organic Chemistry