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AS229: Automated Thermal Desorption Tube Spiking of Volatile Organic Compounds (VOCS) Using GERSTEL Dynamic Headspace Sampler

Martin Perkins

3rd July 2019


Automated Thermal Desorption Tube Spiking of Volatile Organic Compounds (VOCS) Using GERSTEL Dynamic Headspace Sampler:

The spiking of standards (internal standards, surrogates and recovery standards) onto Thermal Desorption Tubes is done widely in laboratories which conduct environmental & occupational exposure testing.

There are currently two main approaches:

  • Spiking with gas standards (manual or automated)
  • Manual tube spiking with liquid solutions directly onto the sorbent

Spiking with gas standards is relatively easy to automate using valves and mass flow controllers but, requires a gas standards generator or the purchasing of standards in canisters.

 

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