| Not official USP-NF text | ||
| GC PHASE | Dimethylpolysiloxane gum | |
| G2 | BRAND NAME | MANUFACTURER |
| CBP-1 | Shimadzu Scientific Inc. | |
| HP-1 | Agilent | |
| OV-1 | Supelco, Inc. | |
| Silicone OV-1 | Alltech, Varian-Chrompack. Supelco | |
| Silicone SE-30 | Alltech,Varian-Chrompack | |
| Zebron ZB-1 | Phenomenex | |