Thermal desorber for gas chromatography
TDU
GERSTEL
The worlds most flexible Thermal Desorption Instrument
The Thermal Desorption Unit (TDU) is a flexible automated solution for thermal desorption and thermal extraction.
Several techniques are supported by the TDU:
- Stir Bar Sorptive Extraction (SBSE) using the GERSTEL Twister®
- Dynamic Headspace (DHS) based on standard headspace vials
- Air sampling onto adsorbent tubes combined with thermal desorption
- Thermal extraction of solid samples placed in fritted TDU tubes
- Thermal extraction of liquids placed in µ-vials inside the TDU
- Direct introduction and thermal extraction of liquids such as standards
The TDU supports manual operation and it can be removed in seconds to enable direct liquid sample introduction into the GERSTEL Cooled Injection System (CIS), a PTV-type universal GC inlet.
Up to 196 samples can be analyzed in one automated sequence using one or more methods when the TDU is configured with the GERSTEL MultiPurpose Sampler (MPS).
The MAESTRO software combined with the Agilent ChemStation controls the complete process from sample introduction through thermal desorption to GC/MS analysis with one method and one sequence table ensuring efficient and error-free operation. When operating with Agilent MassHunter, just one sequence table operates the complete system.
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