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Adsorbent tube, heated

Cold trap

Fig. 3.4. Two-stage thermal desorption. Primary desorption. The adsorbent tube is heated in a stream of gas and the desorbed analytes are transferred to a cold trap, where they are re-collected. It is possible to split parts of the des-orbed sample (inlet split).

Adsorbent tube, heated

Cold trap

Fig. 3.4. Two-stage thermal desorption. Primary desorption. The adsorbent tube is heated in a stream of gas and the desorbed analytes are transferred to a cold trap, where they are re-collected. It is possible to split parts of the des-orbed sample (inlet split).

Outlet split 4

Adsorbent tube, cooling

Heated trap

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