Table 13.
Column performance comparison
| Column Lot No. | Analyte | Resolution (USP)a | Asymmetry (USP) | Plates (USP) |
|---|---|---|---|---|
| 5291-64 | Octopamine | 12.34 | 1.25 | 31033 |
| Synephrine | 3.02 | 1.49 | 41787 | |
| Phenylephrine | 2.56 | 1.60 | 52598 | |
| Tyramine | 4.54 | 1.56 | 55680 | |
| N-methyltyramine | 9.13 | 1.76 | 52529 | |
| Hordenine | NAb | 1.73 | 53486 | |
| 5291-66 | Octopamine | 12.06 | 1.29 | 33231 |
| Synephrine | 3.43 | 1.50 | 45354 | |
| Phenylephrine | 2.12 | 1.48 | 68648 | |
| Tyramine | 4.85 | 1.60 | 66632 | |
| N-nethyltyramine | 9.06 | 1.61 | 73684 | |
| Hordenine | NA | 1.43 | 74813 |
a
USP = U.S. Pharmacopeia.
b
NA = Not applicable.