Restek

Restek HPLC Columns

Restek LC columns are trusted worldwide for delivering fast, accurate, and highly reproducible separations on both HPLC and UHPLC platforms. Built with rugged hardware and advanced particle and bonding technologies, Restek columns provide exceptional peak shape, long-term stability, and consistent performance across instruments, matrices, and workflows.

The Raptor LC series enables ultra-fast, high-resolution separations using phases such as Biphenyl, ARC-18, and Polar X, offering powerful selectivity for complex or co-eluting analytes. Force columns are engineered for demanding high-pressure gradients and harsh conditions, while the Ultra series provides broad, general-purpose selectivity ideal for routine analyses. For higher-pressure systems, Roc columns support operation up to 400 bar, and the UltraShield® precolumn filter protects UHPLC systems and extends column lifetime by preventing particulate contamination.

Chrom Tech supplies the complete lineup of Restek HPLC columns and accessories to support pharmaceutical, food safety, environmental, and research laboratories. For tailored recommendations or method support, please contact Chrom Tech.

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Key Definitions ▸
Biphenyl Selectivity
A Restek-specific aromatic stationary phase that enhances π–π interactions, improving resolution for aromatic, semi-polar, and structurally similar analytes—especially useful in complex matrices.
ARC-18 (Acid-Resistant C18)
A specially engineered C18 phase with enhanced stability under low-pH and aggressive mobile-phase conditions, ideal for high-speed UHPLC gradients and demanding pharmaceutical separations.
Polar X Mixed-Mode Phase
A dual-mode stationary phase combining HILIC and anion-exchange characteristics, offering strong retention and selectivity for polar, ionic, and metabolite-rich samples.
High-Pressure LC (400 bar)
Pressure capability associated with Restek Roc columns, allowing reliable operation on higher-pressure HPLC systems without compromising efficiency or peak shape.
Precolumn Filtration (UltraShield®)
A high-efficiency inlet filter designed to remove particulates before they reach the column bed, extending UHPLC column lifetime and reducing system downtime.
Frequently Asked Questions ▸
What makes Restek HPLC columns stand out?
Restek columns are engineered for fast, durable, and highly reproducible separations. Their advanced particle technology, robust bonding chemistries, and precise manufacturing ensure excellent peak shape and consistent results across instruments, matrices, and labs.
Are Restek columns compatible with UHPLC instruments?
Yes. Restek’s Raptor, Force, and Ultra columns are fully compatible with UHPLC and conventional HPLC systems, supporting high pressures, fast gradients, and sub-2-minute separations.
Which Restek columns are best for complex sample matrices?
The Raptor Biphenyl phase excels with aromatic and semi-polar analytes, while Force FluoroPhenyl offers enhanced selectivity for complex, co-eluting compounds—ideal for pharmaceutical, food safety, and environmental applications.