DB-VRX

DB-VRX column

Agilent DB-VRX GC Columns

Agilent J&W DB-VRX GC columns are engineered to deliver exceptional sensitivity, low bleed, and highly specialized selectivity for the analysis of volatile organic compounds (VOCs) in environmental and regulatory testing workflows. Designed specifically for optimum resolution of volatile compounds—including the challenging “six gases”—DB-VRX provides superior separation efficiency without the need for subambient cooling, making it an ideal solution for high-throughput laboratories.

These low-polarity columns offer outstanding peak shapes for a wide range of volatiles, including alcohols, gases, halogenated solvents, and other regulated compounds commonly analyzed in water, soil, and industrial matrices. DB-VRX columns are fully compliant with U.S. EPA Methods 502.2, 524.2, and 8260, ensuring consistent, reproducible performance in compliance-driven VOC workflows.

Built with a bonded and crosslinked stationary phase for maximum durability, DB-VRX provides reliable performance across an operating temperature range of –20 °C to 260 °C. Its robust construction and finely tuned selectivity support high-sensitivity GC/MS detection, improved signal-to-noise ratios, and enhanced trace-level VOC quantitation.

As an authorized distributor of Agilent GC columns, Chrom Tech offers DB-VRX as a best-in-class choice for laboratories requiring superior sensitivity, regulatory compliance, and high-resolution VOC separations.
Key Definitions ▸
DB-VRX
A low-polarity GC column specifically engineered for high-sensitivity analysis of volatile organic compounds (VOCs). DB-VRX provides exceptional selectivity, low bleed, and strong resolution for the “six gases” without requiring subambient cooling.
EPA VOC Methods (502.2, 524.2, 8260)
U.S. Environmental Protection Agency methods used to quantify volatile organic compounds in drinking water, wastewater, and environmental samples. DB-VRX is fully compliant with these methods, ensuring reproducible retention and sensitivity for regulated volatiles.
Six Gases
A group of challenging volatile analytes—typically including dichlorodifluoromethane, chloromethane, vinyl chloride, bromomethane, chloroethane, and trichlorofluoromethane— that require strong selectivity and optimal peak shape for proper resolution. DB-VRX resolves these compounds without subambient cooling.
Bonded and Crosslinked Phase
A stationary phase chemically attached and crosslinked to the column’s silica surface, providing increased durability, solvent rinseability, and stable performance across repeated thermal cycles in VOC workflows.
Frequently Asked Questions ▸
Why is DB-VRX ideal for low-level VOC analysis?
DB-VRX offers extremely low bleed, excellent inertness, and optimized selectivity for volatile analytes. These characteristics improve signal-to-noise ratios and enable accurate trace-level detection in GC/MS workflows used for environmental and regulatory VOC methods.
What does it mean that DB-VRX resolves the “six gases” without subambient cooling?
Many VOC methods require cooling below room temperature to separate difficult volatile compounds such as chloromethane, vinyl chloride, and bromomethane. DB-VRX’s unique selectivity eliminates this need, simplifying the method while maintaining full resolution.
Which EPA methods is DB-VRX compliant with?
DB-VRX is fully compliant with U.S. EPA Methods 502.2, 524.2, and 8260, making it an ideal choice for environmental VOC testing in drinking water, wastewater, soil, and industrial samples.
What is the temperature operating range of DB-VRX?
DB-VRX operates reliably from –20 °C to 260 °C, providing the thermal stability needed for VOC separations while ensuring durability across repeated heating cycles in routine analytical workflows.