Not official USP-NF text
GC PHASE 25% Phenyl- 75% methylpolysiloxane
G28 BRAND NAME MANUFACTURER
DC-550 Alltech Associates, Inc. Supelco, Inc.
DC-704 J & W Scientific
OV-11 Restek, Corp., Supelco, Inc.
OV-7 Restek Corp., Supelco, Inc.
SPB-35 Supelco, Inc.