DB-UI 8270D Ultra Inert

DB-UI 8270D Ultra Inert

Application Specific GC Columns

Agilent J&W DB-UI8270D columns are purpose-built for the rigorous demands of EPA Method 8270D semivolatile organic compound (SVOC) analysis. Engineered with an Ultra Inert stationary phase and advanced manufacturing technology, these columns deliver exceptional peak shape, improved analyte recovery, and highly reproducible performance—even at trace-level concentrations. Unlike traditional SVOC columns, DB-UI8270D achieves enhanced inertness without compromising bleed, efficiency, or the selectivity required for complex environmental workflows.

Designed specifically for low-level quantitation, DB-UI8270D technology minimizes active-site interactions that commonly affect acids, bases, and thermally sensitive compounds. This results in greater mass-spectral integrity, higher signal-to-noise ratios, and more reliable detection of trace-level contaminants found in soil, water, air, wastewater, and solid waste matrices typically analyzed under EPA 8270D and related semivolatiles methods.

Each DB-UI8270D column undergoes rigorous QC evaluation using some of the most challenging and chemically active semivolatile compounds—including propanoic acid, pyridine, 1,2-butanediol, 1-chloro-2-fluorobenzene, and m-/p-xylene—tested at low oven temperatures (45 Â°C). This ensures optimal inertness and sharp peak shapes for analytes at 5–10 ng on-column, supporting sensitive, defensible quantitation in high-throughput environmental laboratories.

With its combination of Ultra Inert deactivation, optimized phase chemistry, and tight manufacturing control, DB-UI8270D offers superior robustness, column-to-column reproducibility, and exceptional stability over long analytical sequences—delivering the performance required for routine SVOC analysis and demanding environmental regulatory workflows.

Key Definitions â–¸
EPA Method 8270D
A U.S. EPA method for the analysis of semivolatile organic compounds (SVOCs) in solid waste, water, soil, and air matrices. DB-UI8270D columns are optimized to meet the sensitivity, selectivity, and robustness required by this method.
Ultra Inert (UI) Deactivation
Agilent’s most advanced deactivation process that reduces active sites on the column’s interior surface. This improves peak shape and analyte recovery for active, polar, and thermally sensitive SVOCs at trace levels.
Semivolatile Organic Compounds (SVOCs)
Organic compounds with moderate vapor pressures that require high-inertness GC columns for accurate analysis. DB-UI8270D is tested using highly active SVOCs to ensure excellent peak performance at low concentrations.
Column-to-Column Reproducibility
The ability of different columns of the same type to produce consistent chromatographic results. DB-UI8270D incorporates optimized chemistries and modern manufacturing controls to deliver highly consistent retention times and performance across batches.
Trace-Level Analysis (5–10 ng On-Column)
Ultra-low-level quantitation of analytes injected at just a few nanograms on-column. DB-UI8270D columns are individually QC-tested at low temperatures (45 Â°C) using some of the most challenging SVOCs to ensure peak shape and sensitivity at these levels.
Frequently Asked Questions â–¸
What makes DB-UI8270D ideal for EPA Method 8270D?
DB-UI8270D is specifically engineered for the diverse and chemically active semivolatiles targeted by EPA 8270D. Its Ultra Inert deactivation improves analyte recovery, reduces adsorption, enhances peak shape, and ensures reliable quantitation at very low levels—all critical for method compliance and defensible environmental data.
How does DB-UI8270D differ from standard semivolatiles GC columns?
Unlike conventional SVOC columns, DB-UI8270D combines optimized phase chemistry with Ultra Inert deactivation and modern manufacturing controls. This provides superior inertness, lower bleed, better column-to-column reproducibility, and sharper peak shapes—particularly for reactive acids, bases, and thermally sensitive analytes.
What compounds are used for QC testing of DB-UI8270D columns?
Each column is tested with chemically active semivolatile compounds such as propanoic acid, pyridine, 1,2-butanediol, 1-chloro-2-fluorobenzene, and m/p-xylene at low oven temperatures (45 Â°C). Testing with these challenging analytes ensures strong peak shape and inertness at low on-column levels (5–10 ng).
Is DB-UI8270D compatible with GC/MS as well as GC?
Yes. With ultra-low bleed and high inertness, DB-UI8270D delivers clean mass spectra and strong signal-to-noise ratios, making it fully compatible with GC/MS workflows for SVOC analysis in environmental, industrial, and regulatory testing laboratories.
How does the improved inertness benefit trace-level semivolatiles analysis?
Improved inertness reduces analyte adsorption and minimizes tailing—critical for acids, bases, and other active SVOCs. This yields sharper peaks, more stable integration, higher recovery, and better quantitative accuracy when working at very low concentrations (5–10 ng on-column).