Xtimate Hybrid Series

Xtimate® is a new premium HPLC column series and is the product of several years of continuous research on advanced surface modification at Welch Materials, Inc. The Xtimate Series includes columns based on hybrid silica-polymer packing materials and those based on pure polymer media, as well as size exclusion (SEC) columns.

Hybrid Silica Columns

The hybrid particles based Xtimate® phases are bonded using our improved bonding process. Surface bonding coverage for hybrid particles uses a new organic silane with a more reactive group for bonding and endcapping.

C18
C8
C4
Phenyl-Hexyl
CN
Polar-HP
Lactose-NH2
XB-SCX

Polymer Columns

Xtimate® polymer-based columns are based on polystyrene-divinylbenzene (PS-DVB), and can be applied for analysis of organic acids, mixed alcohols and sugar products.

Sugar-H
Sugar-Ca
PS/DVB
S-X3

SEC Columns

Xtimate® SEC is made from ultra high purity (UHP) stable hybrid silica with UHP hydrophilic polymer and diol functional groups. Our process greatly reduces nonspecific adsorption of polymer, protein, peptide, antibodies and other biologics.

SEC-120
SEC-300
SEC-500
SEC-700
SEC-1000