Resolve™ Cation (Aqueous SEC)
Tertiary amine functionality that becomes positively charged in weakly acidic mobile phases. Designed to separate cationic polymers via charge‑charge repulsions.
Key part numbers (selected)
| Part No. | Phase | Porosity | Max Pressure | MW Range |
|---|---|---|---|---|
| R15701 | Cation | 500Å | 8,000 psi | 200 – 15K |
| R15706 | Cation | Mixed Bed | 2,000 psi | 200 – 1M |
MW range depends on sample and mobile phase.
Typical use
• Cationic/amine polymers (e.g., poly(ethyleneimine)) in water/acetic acid systems (method-dependent)
• Useful for light scattering where high salt can reduce performance (application-dependent)
Reference literature: Resolve 5 µm (aqueous specs)
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Include mobile phase pH/composition and expected sample charge density for best recommendations.