| Not official USP-NF text | Column Equivalency Information | |
| PACKING | Strong cation-exchange packing- sulfonaed fluorocarbon polymer coated on a solid spherical core 30 to 50 µm in diameter. | |
| L6 | BRAND NAME | MANUFACTURER |
| Adsorbosphere XL SCX | Grace-Alltech | |
| Partisil 10 SCX | Whatman, Inc. | |
| Zipax SCX | DuPont | |