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Sorbent Media-Tenax

Sorbent Media-Tenax is a crucial in-line collection point for targeted contaminants, offering high thermal resistance and efficiency in capturing particulate matter for subsequent analysis. Known for its specific surface area and ability to collect VOCs and non-polar organics, it is the preferred sorbent for low-level organic compounds like TNT and DNT. This versatile media enables thermal desorption for accurate measurements and is calibrated using specialized tools for precise flow control.

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Sorbent Media-Tenax

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  1. Sorbent Media-Tenax

  2. Sorbent Media-Tenax • Definition • In line collection point for desired contaminant • Purpose • Collection of particulate matter • Serves as “capture” point of sampling train for later analysis

  3. Sorbent Media-Tenax • Specific Surface Area • 20 m2/g • Upper Temperature Range • 350-400C • Composition • Polymer of 2,6-diphenyl-p-phenylene oxide

  4. Sorbent Media-Tenax • Sorbent of choice for low-levels • High thermal limit • Conducive to thermal desorption

  5. Sorbent Media-Tenax • Sorbent of choice for low-levels • Organic compounds • VOCs • Non-polar organics • Especially those with BP 80-200C • TNT, DNT

  6. Sorbent Media-Tenax • Method of Operation • Thermal desorption

  7. Sorbent Media-Tenax • Calibration • Rotameter • Flow is calibrated against ball “floating” in air in the chamber • Bubble tube(Manual or Electronic) • Flow is calibrated by timing bubble travel speed in vertical column

  8. Sorbent Media-Tenax • Filter Cassettes • Filter Cassette Holder

  9. References Cited SKC Inc. Corporate Web Page http://www.skcinc.com/ accessed 04/03/01 Tenax Web Page http://www.tenax.net accessed 05/01/01

  10. Bibliography • DiNardi Salvatore R. (1998) The Occupational Environment-Its Evaluation and Control, AIHA, Fairfax, Virginia • Goetsch David L. (1999) Occupational Safety and Health for Technologists, Engineers, and Managers, Prentice Hall, Upper Saddle River, New Jersey

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