Ultisil XB Series

Welch Ultisil XB Series HPLC Columns are based on ultra-pure ( purity > 99.999% ) spherical and totally porous silica, unique bonding chemistry and proprietary surface modification techniques, producing excellent peak shape, column efficiency and exceptional lot-to-lot reproducibility. Ultisil column is the best choice for method development, owing to complete bonding chemistries and stable performance.

• Ultra-pure spherical porous silica, purity > 99.999%
• Tested and proven low levels of trace metal contamination
• Tenaciously-controlled bonding chemistry and end-capping
• Class-leading reproducibility, efficiency, symmetry, and lifetime