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7650-L20 Software & Manual


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A New Cryogenless TO15 Canister Preconcentrator with Reduced System Carry-Over When Exposed to Higher Concentration Samples


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Overview
A new preconcentrator design is presented which eliminates the need for liquid nitrogen or complicated electronic cooling while performing US EPA Method TO15 analysis. A new technology called Multi-Capillary Column Trapping System (patent pending), or MCCTS, is used to concentrate all TO15 compounds at 35°C, which is achieved simply by using cooling fans. Two stages are used: the first to trap the sample, calibration standards, and internal standard; and the second to further focus the concentrate prior to GCMS injection.

The new solution uses multiple capillary columns in series with increasing strength to trap compounds boiling from -50°C to >230°C, using volumes from 10-500cc. The trap design shows considerably less susceptibility to contamination when exposed to high concentration soil gas samples, reducing the downtime laboratories experience when accidentally analyzing these samples prior to dilution. Full TO15 validation is demonstrated, including blank levels immediately after running higher concentration samples containing BTEX, PCE, and TCE, which are compounds often found in soil gas at elevated concentrations.

Entech 7200 3.2.X.X


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TrueSealTM Valve – For Air & Gas Sampling


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With years of feedback from our laboratory customers and field sampling professionals, Entech has engineered a valve that not only seals with less force than any other valve on the market, but also provides a double seal for extra assurance of leak-free operation even in the most demanding conditions. To achieve these goals, the Entech TrueSealTM valve utilizes some key design innovations and distinctions.

7200CTS Cryogen-Free Preconcentrator Brochure


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Entech is proud to release the world’s first multi-capillary column trapping system (MCCTS) patent pending, for the precise concentration of vapor phased volatile chemicals in the range of C3 to C18 without the need for liquid nitrogen or complicated electronic cooling. With over 28 years of continued improvements and industry feedback, the 7200CTS is as established and reliable as it is new and improved. Many of the important advancements that have led to its unparalleled reproducibility, such as quantitative volumetric measurements utilizing “Accu-Sample Technology,” and digital valve isolation, are left unchanged. The core trapping system, however, has been completely reengineered, giving way to a technology that will likely replace the utilization of packed traps for most, if not all methods requiring the preconcentration of vapor phase volatile organic compounds.

CS1200E Guide for Operation and Calibration


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7650 Tech Notes Distributor


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7200 Tech Notes – Distributor


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7016D Tech Notes – distributor


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4700 Tech Notes Distributor


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