Ultisil ^TM 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 ^TM column is the best choice for method development, owing to complete bonding chemistry and stable performance.

Ultisil XB-Phenyl phase is less retentive than conventional C18 or C8 phases, but more retentive than standard cyano phase. Due to their ability to participate in π-π interactions, XB-Phenyl columns may be more retentive than C18 or C8 columns towards certain polar aromatic compounds, depending on running conditions. The selectivity for highly polar aromatics, which are poorly retained on alkyl-bonded phases, together with reduced retentivity towards non-polar compounds, make XB-Phenyl an excellent choice for the analysis of complex mixtures of polar and non-polar analytes.

Key Features

• Good selectivity for the separation of aromatic and polar compounds;
• Can be the substitute of most phenylpropyl bonded silica; 
• Best value - high premium products with very competitive price

Typical Applications

• Separation of aromatic and polar compounds