| Not official USP-NF text | Column Equivalency Information | |
| PACKING | Gamma alumina, reverse-phase, low carbon percentage by weight, alumina-based polybutadiene spherical particles, 5 µm in diameter with a pore volume of 80 angstrom units. | |
| L29 | BRAND NAME | MANUFACTURER |
| Gamma Alumina Phase RP-1 | ES Industries Inc. | |
| Gammabond ARP-1 | ES Industries | |
| Gammabond Alumina Potency | ES Industries | |