| 優勢: |
| AN Guard Disc simulates replacing the top mm of IC polymer bed |
| (AN1, AN1SC, AN2, AN300B, AN1HS & AN300BHS) |
| Both C18A & C18B |
| C8 |
| SDVB (styrene diviylbenzene) |
| Anion Exchange |
| Strong Cation Exchange |
| Direct Holders (both Parker & Waters type) |
| Universal Holder (female end fittings) |