Welchrom C18E

Welchrom® C18E is a kind of C18 adsorbent with end-capped packing materials, which have the most hydrophobicity. It has excellent strong retention characteristics for non-polar compounds and retains most organic compounds as the most widely used SPE adsorbent. Because C18 has the ability to retain most of the organic substances in water-soluble matrices, it has the least selectivity and is often used to treat analytical samples with multiple or widely different structures. At the same time, the packing mateirals of C18E does not retain salt at all, so C18E column can usually be used instead of ion-exchange column for desalting some small molecules and some medium-sized molecules.