Restek High Performance
Restek Rxi® High-Performance GC Columns
Engineered for analytical precision, Restek Rxi® GC columns deliver exceptional inertness, low bleed, and tight column-to-column reproducibility. Each column is manufactured using advanced Rxi® deactivation and bonding technology, providing superior peak shape for active and high-boiling compounds across a wide range of GC and GC/MS applications.
Whether you’re analyzing environmental volatiles, semi-volatiles, pesticides, hydrocarbons, or complex petrochemical matrices, Rxi columns maintain high thermal stability and consistent selectivity from batch to batch. These columns are designed to minimize analyte adsorption and maximize sensitivity—ensuring reliable, reproducible results even with challenging sample types.
Popular phases include Rxi-1ms, Rxi-5ms, Rxi-35Sil MS, and Rxi-624Sil MS, providing analysts with low-bleed performance, outstanding inertness, and compatibility with both conventional GC and GC/MS systems. Backed by Restek’s stringent quality control and Chrom Tech’s responsive technical support, these columns are a trusted choice for high-performance separations.
Frequently Asked Questions
What makes Restek Rxi® GC columns different from traditional GC columns?
Rxi® columns feature proprietary deactivation and bonding processes that minimize active sites on the tubing surface, producing sharper peaks and better reproducibility for trace-level analytes.
Are Rxi® columns suitable for GC/MS applications?
Yes. Low-bleed Rxi® phases such as Rxi-1ms and Rxi-5ms are optimized for mass-spectrometric detection, reducing background noise and improving signal-to-noise ratios in trace analysis.
Which Rxi® column phase should I choose for my application?
Rxi-1ms is ideal for nonpolar analytes, Rxi-5ms for general-purpose GC/MS work, Rxi-35Sil MS for moderately polar compounds, and Rxi-624Sil MS for volatiles and solvents. Contact Chrom Tech for personalized selection guidance.
