Table 2.
Comparison of the retention of representative non-polar compounds.
| Column Name | Stationary Phase (Abbreviation) | k (HPLC) | k (SFC) | ||
|---|---|---|---|---|---|
| Solute 3 | Solute 4 | Solute 3 | Solute 4 | ||
| COSMOSIL 5SL-II | Silica gel (SL) | 0.02 | 0.00 | 0.00 | 0.01 |
| COSMOSIL 5HILIC | Triazole group (TRZ) | 0.03 | 0.01 | 0.00 | 0.01 |
| COSMOSIL 5HP | Hydroxyphenyl group (HP) | 0.02 | 0.01 | 0.00 | 0.02 |
| COSMOSIL 5PY | Pyridinyl group (PY) | 0.02 | 0.01 | 0.00 | 0.02 |
| Prototype EP | Pyridinylethyl group (EP) | 0.02 | 0.01 | 0.00 | 0.02 |
| COSMOSIL 5C18-MS-II | Octadecyl group (C18-M end-capped) | 0.02 | 0.01 | 0.17 | 0.22 |
| Prototype C18 (not end-capped) | Octadecyl group (C18-M not end-capped) | 0.04 | 0.02 | 0.07 | 0.12 |
| COSMOSIL 5Cholester | Cholesteryl group (CHO) | 0.02 | 0.01 | 0.11 | 0.17 |
| COSMOSIL 5πNAP | Naphthylethyl group (NAP) | 0.00 | 0.00 | 0.03 | 0.07 |
| COSMOSIL 5PYE | Pyrenylethyl group (PYE) | 0.01 | 0.00 | 0.03 | 0.07 |
| COSMOSIL 5PBr | Pentabromophenyl group (PBr) | 0.01 | 0.01 | 0.12 | 0.23 |
Mobile phase, HPLC: ethanol/n-hexane = 1/99, SFC: ethanol/CO2 = 1/99, k. Retention factors of each solute.