Not official USP-NF text
ESTRONE
PF LGS# Brand Type of Test Additional Information
8(1) L3 Spherosil XOA 600 Assay 7-µm
14(5) L1 Nova-Pak C18 Assay { Alternative reagent
14(5) L1 Spherisorb ODS2 Assay 15-cm, 5-µm