Not official USP-NF text
SULFACHLORPYRIDAZINE
PF LGS# Brand Type of Test Additional Information
22(1) L1 Maxsil C18 Assay and Identification 5-µm.
22(1) L1 Partisil ODS Assay and Identification 4.6-mm x 5-cm, 5-µm; Guard column.