Restek General Performance

Restek Rtx® General-Performance GC Columns

Built for reliability and versatility, Restek Rtx® GC columns deliver consistent performance for routine gas chromatography applications. These columns combine proven stationary-phase chemistries with high-quality deactivation to provide excellent resolution, reproducibility, and column stability at an economical cost.

Ideal for general-purpose analyses, Rtx columns are available in a variety of selectivities—from nonpolar to moderately polar—to accommodate diverse analytical workflows. They are designed for laboratories performing environmental, petrochemical, food, flavor, and quality-control testing where robust, day-to-day performance is essential.

Popular phases include Rtx-1, Rtx-5, Rtx-35, Rtx-1701, and Rtx-Wax, offering dependable separations and easy method transfer from legacy DB or HP columns. Each column undergoes rigorous Restek quality testing for bleed, inertness, and efficiency, ensuring reproducible performance backed by Chrom Tech’s technical expertise and responsive support.

Frequently Asked Questions

What applications are Rtx® GC columns suited for?

Rtx® columns are ideal for routine GC analyses such as environmental VOCs, hydrocarbons, solvent residues, and general organic compound separations where consistent, rugged performance is needed.

How do Rtx® columns compare to Rxi® columns?

Rtx® columns are designed for general use and cost-efficiency, while Rxi® columns employ advanced deactivation and bonding for ultra-low bleed and higher inertness required in GC/MS applications.

Can I replace my DB or HP column with an Rtx® phase?

Yes. Restek’s Rtx® phases are designed for direct method compatibility with popular Agilent DB and HP equivalents, allowing seamless column substitution without method redevelopment.