VariPure IPE is a polymer supported quaternary amine resin with a bicarbonate counter ion. It is designed for removing acidic ion pair reagents, such as trifluoracetic acid (TFA), formic acid or acetic acid. It is a high performance and economical acid removal material conveniently supplied as pre-packed SPE type devices. The particle size, capacity and device geometry are matched to provide sufficient residence time to achieve effective ion pair extraction under gravity flow. For acid labile peptides, removal of the ion-pairing agent prevents acid degradation of the peptide during post-HPLC work up, and increases the yield of purified product.
- Pre-packed for convenience
- Removal of ion-pairing agents for improved productivity
- High performance and economy for excellent efficiency