Thermal Conductivity Detector Supplies

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Browse OEM-matched parts and consumables for Agilent GC, GC/MS, and autosamplers.

The Agilent Thermal Conductivity Detector (TCD) is a durable, universal GC detector designed to measure differences in thermal conductivity between pure carrier gas and the column effluent. Because it responds to virtually all compounds that differ from the carrier gas, the TCD is ideal for both organic and inorganic analysis without the need for ionization, a flame, or specialized detector gases.

Agilent’s single-filament, single-column TCD architecture provides excellent long-term stability, extended filament life, and accurate quantitation across a wide dynamic range. Chrom Tech supplies the complete portfolio of genuine Agilent TCD consumables— including filaments, seals, detector blocks, reference flow components, and maintenance kits—to support reliable detector performance and reduce downtime.

As an authorized Agilent distributor, Chrom Tech ensures fast shipping, competitive pricing, and expert technical guidance so your GC workflows remain consistent, calibrated, and optimized for demanding analytical applications.