Waters™ IC-Pak™ columns are polymer-based HPLC columns for ion chromatography.
IC-Pak™ Anion columns are based on polymethacrylate resin with a quaternary ammonium functional group. They are suitable for the analysis of inorganic anions.
IC-Pak™ Cation columns are based on cross-linked styrene divinylbenzene resin with a sulfonic acid functional group. They are suitable for the analysis of mono- and divalent cations (in separate runs with different mobile phase compositions).
IC-Pak™ Ion-Exclusion columns are based on cross-linked styrene divinylbenzene resin with a sulfonic acid functional group. The columns are suitable for the analysis of organic acids, alcohols and carbohydrates via ion exclusion chromatography.
IC-Pak™ C M/D columns are strong cation exchange resins made of porous silica coated with polybutadiene-maleic acid copolymer. The columns allow a simultaneous analysis of monovalent and divalent cations under isocratic conditions.
Phase-Name | Modification | Particle size | Pore size | Capacity | C-Content | USP | Surface | pH-Range | Tmax |
IC-Pak™ Anion | Quaternary Ammonium | 10 µm (spherical) | N/A | 30±3 µeq/mL | N/A | L23 | N/A | 1.0‒12.0 | 50 °C |
IC-Pak™ Kation | Sulfonic acid | 10 µm (irregular) | N/A | 12±0.2 µeq/mL | N/A | L17 | N/A | 1.0‒12.0 | 50 °C |
IC-Pak™ Ion-Exclusion | Sulfonic acid | 7 µm (spherical) | N/A | N/A | N/A | L17/L22 | N/A | N/A | N/A |
IC-Pak™ C M/D | PBD-Maleic acid Copolymer | 5 µm | N/A | 1.5±0.2 meq/g | N/A | L55 | N/A | 2.0‒7.0 | 50 °C |