Not official USP-NF text
POWDERED ST. JOHN'S WORT EXTRACT
PF LGS# Brand Type of Test Additional Information
26(2) L1 Vydac C-18 Content of . . . . . . . . 4.6-mm x 25-cm, 5-µm. Manuf: Separations Group. Col used in the test Content of hypericin/pseudohypericin.
26(2) L1 Vydac C-18 Content of . . . . . . . . column 201 TP 54, 4.6 x 25 cm, manuf. Separations group, content of hypericin and pseudohypericin