Rxi®-5Sil MS (Fused Silica) Print

Rxi®-5Sil MS (Fused Silica)

Restek’s low-bleed MS columns exceed requirements of the most sensitive mass spectrometers.

Available with Integra-Guard™ built-in guard columns. Get the protection without the connection!
  • Engineered to be a low bleed GC/MS column.
  • Excellent inertness for active compounds.
  • General purpose columns--ideal for GC/MS analysis of polycyclic aromatic compounds, chlorinated hydrocarbons, phthalates, phenols, amines, organochlorine pesticides, organophosphorus pesticides, drugs, solvent impurities, and hydrocarbons.
  • Temperature range: -60°C to 350°C.


The Rxi®-5Sil MS stationary phase incorporates phenyl groups in the polymer backbone. This improves thermal stability, reduces bleed, and makes the phase less prone to oxidation. Rxi®-5Sil MS columns are ideal for GC/MS applications requiring high sensitivity, including use in ion trap systems.

(Crossbond®, selectivity close to 5% diphenyl/95% dimethyl polysiloxane)