| Not official USP-NF text | ||||
| COLCHICINE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 12(1) | L7 | Ultrasphere C-8 Octyl | Assay & Chrom. purity | NULL |
| 12(1) | L7 | Microsorb C8 | Assay & Chrom. purity | NULL |
| 12(1) | L7 | ZORBAX C8 | Assay & Chrom. purity | NULL |
| 13(5) | L7 | None Cited | Chromatographic purity | See Assay |
| 16(4) | G27 | None Cited | Organic volat. impurities | See Method I  467 |