Not official USP-NF text
OMEPRAZOLE MAGNESIUM
PF LGS# Brand Type of Test Additional Information
33(3) L7 LiChrosorb RP-8 Assay and Chromatographic purity 4.6 mm x 15 cm.
33(3) L1 Nova-Pak C18 Assay and Chromatographic purity Alternative column. 3.9 mm x 15 cm, 4 µm.