The answer may differ depending on the HOCs. For example, polychlorinated biphenyls (PCBs) might be stored for a week, while polycyclic aromatic hydrocarbons (PAHs) may only be stored for one day. Any information on this would be helpful for using Tenax TA beads to make sample transfers (i.e., shipping).
Abdelhak Maghchiche
The storage duration of hydrophobic organic contaminants (HOCs) in Tenax TA varies by compound, with PCBs lasting about a week and PAHs typically lasting less than a day. Tenax should be stored in cool, dry conditions with minimal exposure to oxygen and light to preserve the adsorbed compounds.
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Peter Philbrook
According to TO-4A, TO-10A, and ASTM D4861-23:
7 days to extract
40 days to analyze extracts
store
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