| Not official USP-NF text | Column Equivalency Information | |
| PACKING | A strong anion-exchange packing made by chemically bonding a quaternary amine to a solid silica spherical core, 30 to 50 µm in diameter. | |
| L12 | BRAND NAME | MANUFACTURER |
| Baker-10 SPE Quarternary Am | J.T.Baker Chemical Co. | |
| Baker-10 SPE Quarternary Amine | J.T.Baker Chemical Co. | |
| Bondapak AX/Corasil | Waters Associates | |
| Dionex | Dionex | |
| HPIC Anion S4 Analysis | Dionex | |
| PartiSphere SAX | Whatman | |
| Zipax SAX | Dupont | |