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Detection of dopamine and catechol using etched end-column electrochemical detection. Separations were performed in 770 nm i.d. capillaries with a 13-μm etch at the detection end. All values are the average of three separations on three different capillaries using three unique electrodes ± the standard deviation.
| Dopamine | Catechol | |
|---|---|---|
| Peak Efficiency | 60 000 ± 50 000 | 80000 ± 20000 |
| Coulometric Efficiency | 70 ± 10% | 40 ± 20% |
| Detection limit [zmol] | 400 ± 100 | 410 ± 80 |
