Thermal Desorber TD 3.5+
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 TD 3.5+ 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 TD 3.5+ impresses due to its full temperature control and its compact design with no cold or active points along the sample path. The TD 3.5+ can be combined with additional GERSTEL modules and therefore forms the basis for a multitude of applications. The operation of the TD 3.5+ can be automated using the MultiPurposeSampler MPS. The system is controlled using the MAESTRO software.
The TD 3.5+ is compatible with the 3.5-inch tubes used in the industry as standard.
How the TD 3.5+ works
The TD 3.5+ offers various application options.
- In classic thermal desorption, analytes that have previously been enriched on an adsorbent are thermally desorbed in the TD 3.5+
- In direct thermal extraction, analytes are thermally extracted from solid or liquid samples in the TD 3.5+. In both cases, the analytes are contained in thermal desorption tubes
- In direct headspace or SPME injection, analytes are injected through the hot TD 3.5+ 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
The full temperature control enables analytes to be heated gently and prevents unwanted reactions with atmospheric oxygen.
The analytes are specifically separated from the sample matrix. The compact design in accordance with the “liner-in-liner” principle prevents the loss or carryover of analytes and reduces the amount of maintenance required. The system can be expanded further at any time. Using thermal extraction, you can analyze substances that cannot be injected into the GC/MS system directly using a syringe.
Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.