Gas chromatography column and supplies

By Chrom Tech – Your Chromatography Consumables Partner Since 1983

Overview

Gas chromatography (GC) is a foundational technique in analytical chemistry, designed to separate and analyze volatile compounds with exceptional precision. Industries ranging from pharmaceuticals and petrochemicals to environmental testing rely on GC for trace-level detection, quantitative analysis, and quality control.

Choosing the right gas chromatography supplies is essential to achieving accurate, repeatable results. Every component—from inlet liners to columns—impacts your system’s performance and data integrity.

As an authorized distributor, Chrom Tech partners with trusted manufacturers like Agilent, Restek, and Trajan/SGE to provide laboratories with precision-engineered GC columns and consumables designed for consistent performance and long-term reliability.

Understanding Gas Chromatography

In GC, samples are vaporized and carried through a column by an inert gas (such as helium or hydrogen). Compounds interact differently with the stationary phase, resulting in distinct retention times that allow precise identification and quantification. GC’s strength lies in its sensitivity, speed, and reproducibility—making it indispensable in analytical laboratories worldwide.

• High sensitivity for trace-level detection
• Rapid analytical throughput
• Exceptional reproducibility for complex samples

Key Components of a GC System

• Columns: The core of separation, where compounds are resolved.
• Injectors: Precisely introduce samples into the carrier gas stream.
• Detectors: Quantify and identify analytes as they elute.
• Carrier Gas System: Maintains constant flow and pressure for consistent performance.

Gas Chromatography Columns and Leading Brands

Columns define the performance of every GC system. Selecting the proper stationary phase, internal diameter, and film thickness ensures optimal resolution and peak shape for your specific application. Capillary columns offer high-resolution separations, while packed columns handle higher sample capacities for preparative or process-scale work.

Chrom Tech proudly supplies precision-engineered GC columns from industry leaders:

• Agilent J&W Ultra Inert GC Columns – Engineered for superior inertness, minimal bleed, and long column life.
• Restek GC Columns – Known for reliability and reproducibility across environmental, food, and petrochemical analyses.
• Trajan/SGE GC Columns – High-quality columns built for consistency and precision in demanding applications.

Essential GC Supplies for Optimal Performance

Every GC component contributes to your system’s analytical accuracy. Replacing consumables regularly ensures clean sample transfer, stable baselines, and reproducible data.

• Agilent Inlet Liners – Optimize sample vaporization and peak reproducibility.
• Agilent Inlet Septa – Provide leak-free injection port sealing.
• Agilent Gold Seals – Deliver high thermal stability and consistent sealing over extended use.
• Trajan/SGE Glass Inlet Liners – Provide precision sample introduction for high-throughput workflows.

Trusted GC Manufacturers

• Agilent: Industry-standard GC columns, inlet liners, and gold seals offering unmatched reliability.
• Restek: Innovative GC consumables for food, environmental, and forensic applications.
• Trajan/SGE: Precision-engineered glassware and inlet liners for superior performance in trace-level analysis.

Selecting the Right GC Supplies

When optimizing your GC setup, consider analytical goals, sample composition, and system compatibility. Chrom Tech’s specialists can help match the ideal components to your workflow and instrumentation.

• Determine your analytical requirements (e.g., sensitivity, throughput, matrix type)
• Match column phase and dimensions to target analytes
• Verify system compatibility for consistent performance

Contact our chromatography experts for personalized guidance: Chrom Tech Contact Page.

Maintenance and Best Practices

• Clean and calibrate GC systems at regular intervals.
• Use a reliable gas flow meter and leak detector for preventive maintenance.
• Replace consumables such as liners, septa, and filters according to usage and application demands.
• Confirm compatibility before adding new components to your system.
• Train laboratory staff on best practices for GC operation and troubleshooting.

Conclusion: Advancing Accuracy with Quality GC Supplies

Reliable gas chromatography supplies ensure precise, reproducible results and extend the life of your instruments. By partnering with Chrom Tech—an authorized distributor of Agilent, Restek, and Trajan/SGE—you gain access to industry-leading GC columns, parts, and accessories that optimize your lab’s performance from injection to detection.

Invest in quality, consistency, and support. Explore our full range of GC columns and supplies to elevate your chromatography results.