Tenax^® -TA is a porous polymer based on 2,6-Diphenyl-p-phenylene Oxide. Tenax^® -TA is a low bleeding material with a very low level of impurities. Tenax^® -TA can be used as both a column packing material and as a trapping adsorbent for organic volatile and semi-volatile compounds. Both the EPA and NIOSH specify the use of Tenax^® in their standard methods. Tenax^® is particularly useful for the analysis of high boiling compounds such as alcohols, polyethylene glycols, diols, phenols, monoamines and diamines, ethanolamines, aldehydes, ketones and chlorinated aromatics. Surface area is 35m²/g. Density is 0.25g/cc. Maximum temperature limit is 350^oC.

          Tenax^®-GR contains 23% graphitized carbon as an integral part of the material. The resulting material gives higher break-through volumes for most materials, yet is less water retentive than Tenax^®-TA. This makes it an ideal material for the preparation of adsorbent traps. When using this material for packing GC columns, better peak symmetry is observed. Surface area is 24.1m²/g. Density is 0.55g/cc. Maximum temperature limit is 350^oC.