Thermal Desorption Unit TDU 2
It can be used not only for conventional thermal desorption, but also for direct thermal extraction or direct headspace or SPME injection into the cold CIS.
The Thermal Desorption Unit TDU 2 is a thermal desorption system with a broad range of applications. It can be used not only for conventional thermal desorption, but also for direct thermal extraction or direct headspace or Solid Phase Micro Extraction SPME injection into the cold Cooled Injection System CIS.
The TDU 2 impresses due to its full temperature control and its compact design with no cold or active points along the sample path. The TDU 2 can be combined with additional GERSTEL modules and therefore forms the basis for a multitude of applications. The operation of the TDU 2 can be automated using the MultiPurposeSampler MPS.
The system is controlled using the MAESTRO software.
Functional principle of the TDU 2
The TDU 2 offers various application options.
- In classic thermal desorption, analytes that have previously been enriched on an adsorbent are thermally desorbed in the TDU 2.
- In direct thermal extraction, analytes are thermally extracted from solid or liquid samples in TDU 2. In both cases, the analytes are contained in thermal desorption tubes.
- In direct headspace or SPME injection, analytes are injected through the hot TDU 2 into the cold KAS and collected there.
Both thermal desorption and thermal extraction are temperature-programmed. The temperatures and gas flows in the system can be individually adjusted.
Benefits
Full temperature control allows gentle heating of analytes and prevents unwanted reactions with atmospheric oxygen. The analytes are specifically separated from the sample matrix.
The compact design with liner-in-liner principle prevents the carry-over and loss of analytes and reduces maintenance costs. The system can be expanded at any time.
Thermal extraction allows you to analyze substances that cannot be injected directly into the GC/MS system using a syringe.
The MAESTRO software allows you to control the entire system simply and intuitively.