Recoveries of dobutamine, dopamine, 3-O-methyldobutamine, and 3-methoxytyramine from porcine COMT assay mixtures after extraction with methylene chloride or ethyl acetate
| Methylene Chloride | Ethyl Acetate | |
|---|---|---|
| Mean ± S.D. % | ||
| Dobutamine | 0.3 ± 0.05 | 11.4 ± 2.5 |
| Dopamine | <0.1 | <0.1 |
| 3-O-Methyldobutamine | 36.7 ± 3.5 | 36.3 ± 5.1 |
| 3-Methoxytyramine | 42.7 ± 5.4 | 40.3 ± 4.0 |