GP Columns
SEPAX GP Columns support general-purpose reversed-phase HPLC for small molecules with moderate to strong hydrophobic character. Use the searchable catalog table below to compare the listed phases, particle sizes, pore sizes, dimensions and catalog numbers, then confirm the final configuration against the intended method and instrument requirements.
GP Columns specifications
| Product phase | Particle size (µm) | Pore size (Å) | Dimensions | Catalog number |
|---|---|---|---|---|
| GP-Phenyl | 1.8 | 120 | 2 × 10 mm | 111361-2001C |
| GP-C18 | 1.8 | 120 | 2 × 10 mm | 101181-2001C |
| GP-Phenyl | 5 | 120 | 4 × 10 mm | 111365-4001C |
| GP-Phenyl | 5 | 120 | 2 × 10 mm | 111365-2001C |
| GP-Phenyl | 3 | 120 | 4 × 10 mm | 111363-4001C |
| GP-Phenyl | 3 | 120 | 2 × 10 mm | 111363-2001C |
| GP-Phenyl | 5 | 120 | 2.1 × 150 mm | 111365-2115 |
| GP-Phenyl | 5 | 120 | 7.8 × 250 mm | 111365-7825 |
| GP-Phenyl | 5 | 120 | 7.8 × 150 mm | 111365-7815 |
| GP-Phenyl | 5 | 120 | 4.6 × 50 mm | 111365-4605 |
| GP-Phenyl | 5 | 120 | 4.6 × 30 mm | 111365-4603 |
| GP-Phenyl | 5 | 120 | 4.6 × 250 mm | 111365-4625 |
| GP-Phenyl | 5 | 120 | 4.6 × 150 mm | 111365-4615 |
| GP-Phenyl | 5 | 120 | 4.6 × 100 mm | 111365-4610 |
| GP-Phenyl | 5 | 120 | 4 × 10 mm | 111365-4001 |
| GP-Phenyl | 5 | 120 | 30 × 50 mm | 111365-30005 |
| GP-Phenyl | 5 | 120 | 30 × 250 mm | 111365-30025 |
| GP-Phenyl | 5 | 120 | 30 × 150 mm | 111365-30015 |
| GP-Phenyl | 5 | 120 | 30 × 100 mm | 111365-30010 |
| GP-Phenyl | 5 | 120 | 21.2 × 50 mm | 111365-21205 |
| GP-Phenyl | 5 | 120 | 21.2 × 250 mm | 111365-21225 |
| GP-Phenyl | 5 | 120 | 21.2 × 150 mm | 111365-21215 |
| GP-Phenyl | 5 | 120 | 21.2 × 100 mm | 111365-21210 |
| GP-Phenyl | 5 | 120 | 2.1 × 50 mm | 111365-2105 |
| GP-Phenyl | 5 | 120 | 2.1 × 30 mm | 111365-2103 |
| GP-Phenyl | 5 | 120 | 2.1 × 250 mm | 111365-2125 |
| GP-Phenyl | 5 | 120 | 2.1 × 100 mm | 111365-2110 |
| GP-Phenyl | 5 | 120 | 2 × 10 mm | 111365-2001 |
| GP-Phenyl | 5 | 120 | 10 × 50 mm | 111365-10005 |
| GP-Phenyl | 5 | 120 | 10 × 250 mm | 111365-10025 |
| GP-Phenyl | 5 | 120 | 10 × 150 mm | 111365-10015 |
| GP-Phenyl | 5 | 120 | 10 × 100 mm | 111365-10010 |
| GP-Phenyl | 3 | 120 | 4.6 × 50 mm | 111363-4605 |
| GP-Phenyl | 3 | 120 | 4.6 × 30 mm | 111363-4603 |
| GP-Phenyl | 3 | 120 | 4.6 × 250 mm | 111363-4625 |
| GP-Phenyl | 3 | 120 | 4.6 × 150 mm | 111363-4615 |
| GP-Phenyl | 3 | 120 | 4.6 × 100 mm | 111363-4610 |
| GP-Phenyl | 3 | 120 | 4 × 10 mm | 111363-4001 |
| GP-Phenyl | 3 | 120 | 2.1 × 50 mm | 111363-2105 |
| GP-Phenyl | 3 | 120 | 2.1 × 30 mm | 111363-2103 |
| GP-Phenyl | 3 | 120 | 2.1 × 250 mm | 111363-2125 |
| GP-Phenyl | 3 | 120 | 2.1 × 150 mm | 111363-2115 |
| GP-Phenyl | 3 | 120 | 2.1 × 100 mm | 111363-2110 |
| GP-Phenyl | 3 | 120 | 2 × 10 mm | 111363-2001 |
| GP-Phenyl | 10 | 120 | 7.8 × 250 mm | 111369-7825 |
| GP-Phenyl | 10 | 120 | 7.8 × 150 mm | 111369-7815 |
| GP-Phenyl | 10 | 120 | 30 × 50 mm | 111369-30005 |
| GP-Phenyl | 10 | 120 | 30 × 250 mm | 111369-30025 |
| GP-Phenyl | 10 | 120 | 30 × 150 mm | 111369-30015 |
| GP-Phenyl | 10 | 120 | 30 × 100 mm | 111369-30010 |
| GP-Phenyl | 10 | 120 | 21.2 × 50 mm | 111369-21205 |
| GP-Phenyl | 10 | 120 | 21.2 × 250 mm | 111369-21225 |
| GP-Phenyl | 10 | 120 | 21.2 × 150 mm | 111369-21215 |
| GP-Phenyl | 10 | 120 | 21.2 × 100 mm | 111369-21210 |
| GP-Phenyl | 10 | 120 | 10 × 50 mm | 111369-10005 |
| GP-Phenyl | 10 | 120 | 10 × 250 mm | 111369-10025 |
| GP-Phenyl | 10 | 120 | 10 × 150 mm | 111369-10015 |
| GP-Phenyl | 10 | 120 | 10 × 100 mm | 111369-10010 |
| GP-Phenyl | 1.8 | 120 | 4.6 × 50 mm | 111361-4605 |
| GP-Phenyl | 1.8 | 120 | 4.6 × 30 mm | 111361-4603 |
| GP-Phenyl | 1.8 | 120 | 4.6 × 150 mm | 111361-4615 |
| GP-Phenyl | 1.8 | 120 | 4.6 × 100 mm | 111361-4610 |
| GP-Phenyl | 1.8 | 120 | 2.1 × 50 mm | 111361-2105 |
| GP-Phenyl | 1.8 | 120 | 2.1 × 30 mm | 111361-2103 |
| GP-Phenyl | 1.8 | 120 | 2.1 × 150 mm | 111361-2115 |
| GP-Phenyl | 1.8 | 120 | 2.1 × 100 mm | 111361-2110 |
| GP-C8 | 5 | 120 | 4 × 10 mm | 107085-4001C |
| GP-C8 | 5 | 120 | 2 × 10 mm | 107085-2001C |
| GP-C8 | 3 | 120 | 4 × 10 mm | 107083-4001C |
| GP-C8 | 3 | 120 | 2 × 10 mm | 107083-2001C |
| GP-C8 | 5 | 120 | 4.6 × 50 mm | 107085-4605 |
| GP-C8 | 5 | 120 | 4.6 × 30 mm | 107085-4603 |
| GP-C8 | 5 | 120 | 4.6 × 250 mm | 107085-4625 |
| GP-C8 | 5 | 120 | 4.6 × 150 mm | 107085-4615 |
| GP-C8 | 5 | 120 | 4.6 × 100 mm | 107085-4610 |
| GP-C8 | 5 | 120 | 21.2 × 50 mm | 107085-21205 |
| GP-C8 | 5 | 120 | 21.2 × 250 mm | 107085-21225 |
| GP-C8 | 5 | 120 | 21.2 × 150 mm | 107085-21215 |
| GP-C8 | 5 | 120 | 21.2 × 100 mm | 107085-21210 |
| GP-C8 | 5 | 120 | 10 × 50 mm | 107085-10005 |
| GP-C8 | 5 | 120 | 10 × 250 mm | 107085-10025 |
| GP-C8 | 5 | 120 | 10 × 150 mm | 107085-10015 |
| GP-C8 | 5 | 120 | 10 × 100 mm | 107085-10010 |
| GP-C8 | 5 | 120 | 7.8 × 250 mm | 107085-7825 |
| GP-C8 | 5 | 120 | 7.8 × 150 mm | 107085-7815 |
| GP-C8 | 5 | 120 | 4 × 10 mm | 107085-4001 |
| GP-C8 | 5 | 120 | 30 × 50 mm | 107085-30005 |
| GP-C8 | 5 | 120 | 30 × 250 mm | 107085-30025 |
| GP-C8 | 5 | 120 | 30 × 150 mm | 107085-30015 |
| GP-C8 | 5 | 120 | 30 × 100 mm | 107085-30010 |
| GP-C8 | 5 | 120 | 2.1 × 50 mm | 107085-2105 |
| GP-C8 | 5 | 120 | 2.1 × 30 mm | 107085-2103 |
| GP-C8 | 5 | 120 | 2.1 × 250 mm | 107085-2125 |
| GP-C8 | 5 | 120 | 2.1 × 150 mm | 107085-2115 |
| GP-C8 | 5 | 120 | 2.1 × 100 mm | 107085-2110 |
| GP-C8 | 5 | 120 | 2 × 10 mm | 107085-2001 |
| GP-C8 | 3 | 120 | 4.6 × 50 mm | 107083-4605 |
| GP-C8 | 3 | 120 | 4.6 × 30 mm | 107083-4603 |
| GP-C8 | 3 | 120 | 4.6 × 250 mm | 107083-4625 |
| GP-C8 | 3 | 120 | 4.6 × 150 mm | 107083-4615 |
| GP-C8 | 3 | 120 | 4.6 × 100 mm | 107083-4610 |
| GP-C8 | 3 | 120 | 4 × 10 mm | 107083-4001 |
| GP-C8 | 3 | 120 | 2.1 × 50 mm | 107083-2105 |
| GP-C8 | 3 | 120 | 2.1 × 30 mm | 107083-2103 |
| GP-C8 | 3 | 120 | 2.1 × 250 mm | 107083-2125 |
| GP-C8 | 3 | 120 | 2.1 × 150 mm | 107083-2115 |
| GP-C8 | 3 | 120 | 2.1 × 100 mm | 107083-2110 |
| GP-C8 | 3 | 120 | 2 × 10 mm | 107083-2001 |
| GP-C8 | 10 | 120 | 7.8 × 250 mm | 107089-7825 |
| GP-C8 | 10 | 120 | 7.8 × 150 mm | 107089-7815 |
| GP-C8 | 10 | 120 | 30 × 50 mm | 107089-30005 |
| GP-C8 | 10 | 120 | 30 × 250 mm | 107089-30025 |
| GP-C8 | 10 | 120 | 30 × 150 mm | 107089-30015 |
| GP-C8 | 10 | 120 | 30 × 100 mm | 107089-30010 |
| GP-C8 | 10 | 120 | 21.2 × 50 mm | 107089-21205 |
| GP-C8 | 10 | 120 | 21.2 × 250 mm | 107089-21225 |
| GP-C8 | 10 | 120 | 21.2 × 150 mm | 107089-21215 |
| GP-C8 | 10 | 120 | 21.2 × 100 mm | 107089-21210 |
| GP-C8 | 10 | 120 | 10 × 50 mm | 107089-10005 |
| GP-C8 | 10 | 120 | 10 × 250 mm | 107089-10025 |
| GP-C8 | 10 | 120 | 10 × 150 mm | 107089-10015 |
| GP-C8 | 10 | 120 | 10 × 100 mm | 107089-10010 |
| GP-C8 | 1.8 | 120 | 4.6 × 50 mm | 107081-4605 |
| GP-C8 | 1.8 | 120 | 4.6 × 30 mm | 107081-4603 |
| GP-C8 | 1.8 | 120 | 4.6 × 150 mm | 107081-4615 |
| GP-C8 | 1.8 | 120 | 4.6 × 100 mm | 107081-4610 |
| GP-C8 | 1.8 | 120 | 2.1 × 50 mm | 107081-2105 |
| GP-C8 | 1.8 | 120 | 2.1 × 30 mm | 107081-2103 |
| GP-C8 | 1.8 | 120 | 2.1 × 150 mm | 107081-2115 |
| GP-C8 | 1.8 | 120 | 2.1 × 100 mm | 107081-2110 |
| GP-C4 | 5 | 120 | 4 × 10 mm | 109045-4001C |
| GP-C4 | 5 | 120 | 2 × 10 mm | 109045-2001C |
| GP-C4 | 3 | 120 | 4 × 10 mm | 109043-4001C |
| GP-C4 | 3 | 120 | 2 × 10 mm | 109043-2001C |
| GP-C4 | 5 | 120 | 4.6 × 50 mm | 109045-4605 |
| GP-C4 | 5 | 120 | 4.6 × 30 mm | 109045-4603 |
| GP-C4 | 5 | 120 | 4.6 × 250 mm | 109045-4625 |
| GP-C4 | 5 | 120 | 4.6 × 150 mm | 109045-4615 |
| GP-C4 | 5 | 120 | 4.6 × 100 mm | 109045-4610 |
| GP-C4 | 5 | 120 | 4 × 10 mm | 109045-4001 |
| GP-C4 | 5 | 120 | 2.1 × 50 mm | 109045-2105 |
| GP-C4 | 5 | 120 | 2.1 × 30 mm | 109045-2103 |
| GP-C4 | 5 | 120 | 2.1 × 250 mm | 109045-2125 |
| GP-C4 | 5 | 120 | 2.1 × 150 mm | 109045-2115 |
| GP-C4 | 5 | 120 | 2.1 × 100 mm | 109045-2110 |
| GP-C4 | 5 | 120 | 2 × 10 mm | 109045-2001 |
| GP-C4 | 5 | 120 | 7.8 × 250 mm | 109045-7825 |
| GP-C4 | 5 | 120 | 7.8 × 150 mm | 109045-7815 |
| GP-C4 | 5 | 120 | 30 × 50 mm | 109045-30005 |
| GP-C4 | 5 | 120 | 30 × 250 mm | 109045-30025 |
| GP-C4 | 5 | 120 | 30 × 150 mm | 109045-30015 |
| GP-C4 | 5 | 120 | 30 × 100 mm | 109045-30010 |
| GP-C4 | 5 | 120 | 21.2 × 50 mm | 109045-21205 |
| GP-C4 | 5 | 120 | 21.2 × 250 mm | 109045-21225 |
| GP-C4 | 5 | 120 | 21.2 × 150 mm | 109045-21215 |
| GP-C4 | 5 | 120 | 21.2 × 100 mm | 109045-21210 |
| GP-C4 | 5 | 120 | 10 × 50 mm | 109045-10005 |
| GP-C4 | 5 | 120 | 10 × 250 mm | 109045-10025 |
| GP-C4 | 5 | 120 | 10 × 150 mm | 109045-10015 |
| GP-C4 | 5 | 120 | 10 × 100 mm | 109045-10010 |
| GP-C4 | 3 | 120 | 4.6 × 50 mm | 109043-4605 |
| GP-C4 | 3 | 120 | 4.6 × 30 mm | 109043-4603 |
| GP-C4 | 3 | 120 | 4.6 × 250 mm | 109043-4625 |
| GP-C4 | 3 | 120 | 4.6 × 150 mm | 109043-4615 |
| GP-C4 | 3 | 120 | 4.6 × 100 mm | 109043-4610 |
| GP-C4 | 3 | 120 | 4 × 10 mm | 109043-4001 |
| GP-C4 | 3 | 120 | 2.1 × 50 mm | 109043-2105 |
| GP-C4 | 3 | 120 | 2.1 × 30 mm | 109043-2103 |
| GP-C4 | 3 | 120 | 2.1 × 250 mm | 109043-2125 |
| GP-C4 | 3 | 120 | 2.1 × 150 mm | 109043-2115 |
| GP-C4 | 3 | 120 | 2.1 × 100 mm | 109043-2110 |
| GP-C4 | 3 | 120 | 2 × 10 mm | 109043-2001 |
| GP-C4 | 10 | 120 | 7.8 × 250 mm | 109049-7825 |
| GP-C4 | 10 | 120 | 7.8 × 150 mm | 109049-7815 |
| GP-C4 | 10 | 120 | 30 × 50 mm | 109049-30005 |
| GP-C4 | 10 | 120 | 30 × 250 mm | 109049-30025 |
| GP-C4 | 10 | 120 | 30 × 150 mm | 109049-30015 |
| GP-C4 | 10 | 120 | 30 × 100 mm | 109049-30010 |
| GP-C4 | 10 | 120 | 21.2 × 50 mm | 109049-21205 |
| GP-C4 | 10 | 120 | 21.2 × 250 mm | 109049-21225 |
| GP-C4 | 10 | 120 | 21.2 × 150 mm | 109049-21215 |
| GP-C4 | 10 | 120 | 21.2 × 100 mm | 109049-21210 |
| GP-C4 | 10 | 120 | 10 × 50 mm | 109049-10005 |
| GP-C4 | 10 | 120 | 10 × 250 mm | 109049-10025 |
| GP-C4 | 10 | 120 | 10 × 150 mm | 109049-10015 |
| GP-C4 | 10 | 120 | 10 × 100 mm | 109049-10010 |
| GP-C4 | 1.8 | 120 | 4.6 × 50 mm | 109041-4605 |
| GP-C4 | 1.8 | 120 | 4.6 × 30 mm | 109041-4603 |
| GP-C4 | 1.8 | 120 | 4.6 × 150 mm | 109041-4615 |
| GP-C4 | 1.8 | 120 | 4.6 × 100 mm | 109041-4610 |
| GP-C4 | 1.8 | 120 | 2.1 × 50 mm | 109041-2105 |
| GP-C4 | 1.8 | 120 | 2.1 × 30 mm | 109041-2103 |
| GP-C4 | 1.8 | 120 | 2.1 × 150 mm | 109041-2115 |
| GP-C4 | 1.8 | 120 | 2.1 × 100 mm | 109041-2110 |
| GP-C18 | 5 | 120 | 2 × 10 mm | 101185-2001C |
| GP-C18 | 5 | 120 | 4 × 10 mm | 101185-4001C |
| GP-C18 | 3 | 120 | 4 × 10 mm | 101183-4001C |
| GP-C18 | 3 | 120 | 2 × 10 mm | 101183-2001C |
| GP-C18 | 5 | 120 | 4.6 × 50 mm | 101185-4605 |
| GP-C18 | 5 | 120 | 4.6 × 30 mm | 101185-4603 |
| GP-C18 | 5 | 120 | 4.6 × 250 mm | 101185-4625 |
| GP-C18 | 5 | 120 | 4.6 × 150 mm | 101185-4615 |
| GP-C18 | 5 | 120 | 4.6 × 100 mm | 101185-4610 |
| GP-C18 | 5 | 120 | 21.2 × 50 mm | 101185-21205 |
| GP-C18 | 5 | 120 | 21.2 × 250 mm | 101185-21225 |
| GP-C18 | 5 | 120 | 21.2 × 150 mm | 101185-21215 |
| GP-C18 | 5 | 120 | 21.2 × 100 mm | 101185-21210 |
| GP-C18 | 5 | 120 | 2.1 × 50 mm | 101185-2105 |
| GP-C18 | 5 | 120 | 2.1 × 30 mm | 101185-2103 |
| GP-C18 | 5 | 120 | 2.1 × 250 mm | 101185-2125 |
| GP-C18 | 5 | 120 | 2.1 × 150 mm | 101185-2115 |
| GP-C18 | 5 | 120 | 2.1 × 100 mm | 101185-2110 |
| GP-C18 | 5 | 120 | 2 × 10 mm | 101185-2001 |
| GP-C18 | 5 | 120 | 7.8 × 250 mm | 101185-7825 |
| GP-C18 | 5 | 120 | 7.8 × 150 mm | 101185-7815 |
| GP-C18 | 5 | 120 | 7.8 × 100 mm | 101185-7810 |
| GP-C18 | 5 | 120 | 4 × 10 mm | 101185-4001 |
| GP-C18 | 5 | 120 | 30 × 50 mm | 101185-30005 |
| GP-C18 | 5 | 120 | 30 × 250 mm | 101185-30025 |
| GP-C18 | 5 | 120 | 30 × 150 mm | 101185-30015 |
| GP-C18 | 5 | 120 | 30 × 100 mm | 101185-30010 |
| GP-C18 | 5 | 120 | 10 × 50 mm | 101185-10005 |
| GP-C18 | 5 | 120 | 10 × 250 mm | 101185-10025 |
| GP-C18 | 5 | 120 | 10 × 150 mm | 101185-10015 |
| GP-C18 | 5 | 120 | 10 × 100 mm | 101185-10010 |
| GP-C18 | 3 | 120 | 4.6 × 50 mm | 101183-4605 |
| GP-C18 | 3 | 120 | 4.6 × 30 mm | 101183-4603 |
| GP-C18 | 3 | 120 | 4.6 × 250 mm | 101183-4625 |
| GP-C18 | 3 | 120 | 4.6 × 150 mm | 101183-4615 |
| GP-C18 | 3 | 120 | 4.6 × 100 mm | 101183-4610 |
| GP-C18 | 3 | 120 | 4 × 10 mm | 101183-4001 |
| GP-C18 | 3 | 120 | 21.2 × 250 mm | 101183-21225 |
| GP-C18 | 3 | 120 | 21.2 × 150 mm | 101183-21215 |
| GP-C18 | 3 | 120 | 21.2 × 100 mm | 101183-21210 |
| GP-C18 | 3 | 120 | 2.1 × 50 mm | 101183-2105 |
| GP-C18 | 3 | 120 | 2.1 × 30 mm | 101183-2103 |
| GP-C18 | 3 | 120 | 2.1 × 250 mm | 101183-2125 |
| GP-C18 | 3 | 120 | 2.1 × 150 mm | 101183-2115 |
| GP-C18 | 3 | 120 | 2.1 × 100 mm | 101183-2110 |
| GP-C18 | 3 | 120 | 2 × 10 mm | 101183-2001 |
| GP-C18 | 10 | 120 | 7.8 × 250 mm | 101189-7825 |
| GP-C18 | 10 | 120 | 7.8 × 150 mm | 101189-7815 |
| GP-C18 | 10 | 120 | 50 × 250 mm | 101189-50025 |
| GP-C18 | 10 | 120 | 4.6 × 300 mm | 101189-4630 |
| GP-C18 | 10 | 120 | 4.6 × 250 mm | 101189-4625 |
| GP-C18 | 10 | 120 | 30 × 50 mm | 101189-30005 |
| GP-C18 | 10 | 120 | 30 × 250 mm | 101189-30025 |
| GP-C18 | 10 | 120 | 30 × 150 mm | 101189-30015 |
| GP-C18 | 10 | 120 | 30 × 100 mm | 101189-30010 |
| GP-C18 | 10 | 120 | 21.2 × 50 mm | 101189-21205 |
| GP-C18 | 10 | 120 | 21.2 × 250 mm | 101189-21225 |
| GP-C18 | 10 | 120 | 21.2 × 150 mm | 101189-21215 |
| GP-C18 | 10 | 120 | 21.2 × 100 mm | 101189-21210 |
| GP-C18 | 10 | 120 | 10 × 50 mm | 101189-10005 |
| GP-C18 | 10 | 120 | 10 × 250 mm | 101189-10025 |
| GP-C18 | 10 | 120 | 10 × 150 mm | 101189-10015 |
| GP-C18 | 10 | 120 | 10 × 100 mm | 101189-10010 |
| GP-C18 | 1.8 | 120 | 4.6 × 50 mm | 101181-4605 |
| GP-C18 | 1.8 | 120 | 4.6 × 30 mm | 101181-4603 |
| GP-C18 | 1.8 | 120 | 4.6 × 150 mm | 101181-4615 |
| GP-C18 | 1.8 | 120 | 4.6 × 100 mm | 101181-4610 |
| GP-C18 | 1.8 | 120 | 2.1 × 50 mm | 101181-2105 |
| GP-C18 | 1.8 | 120 | 2.1 × 30 mm | 101181-2103 |
| GP-C18 | 1.8 | 120 | 2.1 × 150 mm | 101181-2115 |
| GP-C18 | 1.8 | 120 | 2.1 × 100 mm | 101181-2110 |
Overview
Named phases: GP-C18, GP-C4, GP-C8, GP-Phenyl
Separation categories: RP
Available particle sizes: 1.8, 3, 5, 10 µm
Available pore sizes: 120 Å
Scientific principle
Reversed-phase chromatography retains analytes through interactions with a comparatively non-polar stationary phase, typically using aqueous-organic mobile phases.
For detailed surface chemistry and packing guidance, contact technical support.
What are SEPAX GP Columns?
SEPAX GP Columns are catalog-listed products for general-purpose reversed-phase HPLC. The family is intended for small molecules with moderate to strong hydrophobic character, with available configurations shown in the specification table on this page.
How do GP Columns work?
The separation is governed by hydrophobic partitioning on C4, C8, C18 or phenyl phases. Selectivity also depends on the exact phase, mobile phase, sample properties, temperature, flow rate and column dimensions.
How to select a configuration
Start with the required separation mechanism and named phase. Then compare particle size, pore size where listed, internal diameter, length and catalog number. Match the configuration to system pressure capability, sample load and the scale of the method.
Applications
This family is relevant to routine assay, impurity analysis and general laboratory separations. Suitability must be confirmed experimentally with the actual sample and method conditions.
Method development
Begin with a documented method or a chemically reasonable starting condition for the selected phase. Control sample solvent strength, buffer compatibility, pH, ionic strength, gradient profile, temperature and injection volume. Change one variable at a time and record system-suitability results.
Column care and storage
Filter samples and mobile phases, prevent buffer precipitation, avoid sudden solvent incompatibility and stay within the product-specific operating limits supplied with the column. After use, remove strongly retained material with a compatible wash and store the column only in a suitable solvent for that exact phase.
Replacement and method transfer
Do not select a replacement by dimensions alone. Compare separation mechanism, stationary-phase type, particle size, pore size where applicable, column geometry and method conditions. Verify equivalence through retention, resolution, efficiency, tailing and system-suitability testing.
For catalog identification and application support, contact SEPAX technical support in India.
Troubleshooting guidance
Check sample solvent strength, buffer preparation, detector settings, flow accuracy and column temperature when peak shape or retention changes.
Cleaning and regeneration
Flush retained compounds with stronger organic solvent after removing nonvolatile salts. Store in a clean compatible organic–aqueous mixture recommended for the selected phase.
Mobile phase recommendations
Begin with water and acetonitrile or methanol, adding a suitable buffer or acid modifier when ionization control is required. Select pH within the phase’s operating range and optimize organic strength before changing dimensions.
Related SEPAX product families
For complementary selectivity or workflow steps, also review HP Columns, BR Columns and PolyRP Columns. These related families can support orthogonal method development, sample cleanup, confirmation or scale-up depending on the application.
Frequently asked questions
What are GP Columns?
GP Columns are SEPAX catalog products used for general-purpose reversed-phase HPLC. The listed configurations can be compared by phase, particle size, pore size where applicable, dimensions and catalog number.
How do GP Columns work?
They separate analytes through hydrophobic partitioning on C4, C8, C18 or phenyl phases. The exact behavior depends on the selected phase and method conditions.
Which GP Columns should I choose?
Choose first by separation mechanism and named phase, then by particle size, pore size where listed, internal diameter, length, sample load and system pressure capability.
Does this page show the catalog configurations for GP Columns?
Yes. The searchable specification table presents the configurations included in the website catalog data for this family. Use the catalog number when requesting confirmation or a quotation.
What applications are suitable for GP Columns?
This family is relevant to routine assay, impurity analysis and general laboratory separations. Final suitability depends on the analyte, sample matrix and method requirements.
Who supplies GP Columns in India?
Akira Analytical Solutions Pvt. Ltd. supplies SEPAX products in India and assists with catalog identification, column selection and technical enquiries.
Technical support for GP Columns
Send the application, current method and preferred dimensions to Akira Analytical Solutions Pvt. Ltd..