Not official USP-NF text
TRAMADOL HYDROCHLORIDE
PF LGS# Brand Type of Test Additional Information
33(4) L1 Nucleosil C18 Assay and Related Compounds 4.6 mm x 25 cm, 5 µm.
31(2) G43 Rtx-1301 Limit of . . . . . . . . . Limit of isopropyl alcohol. 0.53 mm x 60 m, manufacturer Restek.
31(2) L1 LiChrosorb RP-Select B Related compounds 4.0 mm x 25 cm, manufacturer Merck KGaA.