Large-Volume Canister Autosampler for GC

Entech 7500 Series

The Model 7500A Headspace Autosampler represents the most versatile and feature-rich headspace inlet available for today’s research and production laboratories.

Entech's environmental products meet EPA specifications for methods TO1, TO2, TO3, TO12, TO14 and TO15 for VOC sampling analysis

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Unsurpassed sensitivity, sample loading, and statistical accuracy

Volumes up to 1000cc can be focused to a few microliters prior to injection, providing sensitivities that are 1000 times better than conventional loop injection headspace techniques.

Graph above shows fragrance analysis in shampoo by GCMS

Large Volume Static Headspace vs Classical Loop Injection

Features

• “Septum-free” sample handling approach allows for the management and analysis of solids, liquids, and gases.
• Vacuum-tight sample vials allows lower equilibration time while maximizing recovery of heavy and polar compounds.
• No limitation is placed on the viscosity of the product and aerosol formation is eliminated, so transfer lines remain clean.
• Sample volumes are not limited by the use of a sampling syringe and can range from 40mL to 1000mL.

Entech 7100A Automated Preconcentrator

A unique three-stage system enables recovery of wider range of compound classes, while allowing detection of ppb and sub-ppb volatile chemicals.