Not official USP-NF text
METHYLPHENIDATE HYDROCHLORIDE
PF LGS# Brand Type of Test Additional Information
36(1) L1 Symmetry C18 Assay and Organic Impurities Organic impurities, Procedure 1. 4.6 mm x 25 cm, 5 µm.
30(2) L1 ZORBAX Eclipse XDB-C18 Assay and Related Compounds 15 cm x 4.6 mm, 3.5 µm.
36(1) L7 Symmetry C8 Organic Impurities Procedure 2. 3.9 mm x 15 cm, 5 µm.
16(3) G27 None Cited Organic volatile impurities See Method I 467