GERSTEL Thermal Desorber - TD 3.5+ - Specifications
Brochures and specifications | | GERSTELInstrumentation
In modern analytical workflows, thermal desorption is essential for trace-level determination of volatile and semi-volatile compounds across environmental monitoring, food flavor analysis, and industrial quality control. By enabling solvent-free transfer and automated sample handling, thermal desorption enhances sensitivity, reduces contamination risk, and supports high-throughput GC and GC–MS applications.
This document summarizes the design and capabilities of the GERSTEL Thermal Desorber TD 3.5+. Key goals include showcasing its flexibility with 3.5 inch sorbent tubes, direct desorption of solid and liquid samples, compatibility with GERSTEL Twister stir-bar sorptive extraction, and integration with a Cooled Injection System for GC and GC–MS analysis.
The TD 3.5+ features a compact thermal unit with precise temperature control from standby conditions up to 350 °C, programmable in up to two ramps at up to 400 °C/min. Cooling options include universal Peltier (UPC Plus), cryostatic cooling (CCD 2), and liquid nitrogen down to –150 °C. Sample transfer modes cover split, splitless, and solvent venting, with pneumatic control via a dedicated box or integrated GC pneumatics. Sample handling modes allow retention or removal of the tube post-desorption with or without cooling. The system supports direct liquid addition, hot headspace/SPME injection (HIT), Dynamic Headspace (DHS), and automated workflows using the GERSTEL MultiPurpose Sampler (MPS).
Performance highlights include rapid thermal cycling with cooling from 300 °C to 30 °C in under 60 seconds (UPC Plus), split ratio control for precise sample introduction, and hold times up to 650 minutes. The system accommodates up to 240 tubes per automation run, supports multiple adsorbents, and delivers robust analyte focusing directly into the GC column. Low thermal mass design reduces cycle times and energy consumption.
The TD 3.5+ offers enhanced sensitivity and reproducibility for a wide range of analytes, from light volatiles to high-boiling compounds. Automation reduces manual intervention, lowers carryover, and increases throughput in environmental monitoring, flavor and fragrance analysis, QA/QC in pharmaceuticals, and forensic fingerprinting.
Advancements may include integration with AI-driven method development, real-time process monitoring, remote operation via digital lab platforms, and coupling with multidimensional GC–MS and high-resolution mass spectrometry. Miniaturization and portable versions could expand field applications and on-site analysis.
With its versatile sample handling, precise temperature control, and seamless automation, the GERSTEL Thermal Desorber TD 3.5+ delivers a comprehensive solution for efficient thermal desorption workflows, supporting diverse analytical challenges in modern laboratories.
Thermal desorption
IndustriesManufacturerGERSTEL
Summary
Importance of the Topic
In modern analytical workflows, thermal desorption is essential for trace-level determination of volatile and semi-volatile compounds across environmental monitoring, food flavor analysis, and industrial quality control. By enabling solvent-free transfer and automated sample handling, thermal desorption enhances sensitivity, reduces contamination risk, and supports high-throughput GC and GC–MS applications.
Objectives and Overview
This document summarizes the design and capabilities of the GERSTEL Thermal Desorber TD 3.5+. Key goals include showcasing its flexibility with 3.5 inch sorbent tubes, direct desorption of solid and liquid samples, compatibility with GERSTEL Twister stir-bar sorptive extraction, and integration with a Cooled Injection System for GC and GC–MS analysis.
Methods and Instrumentation
The TD 3.5+ features a compact thermal unit with precise temperature control from standby conditions up to 350 °C, programmable in up to two ramps at up to 400 °C/min. Cooling options include universal Peltier (UPC Plus), cryostatic cooling (CCD 2), and liquid nitrogen down to –150 °C. Sample transfer modes cover split, splitless, and solvent venting, with pneumatic control via a dedicated box or integrated GC pneumatics. Sample handling modes allow retention or removal of the tube post-desorption with or without cooling. The system supports direct liquid addition, hot headspace/SPME injection (HIT), Dynamic Headspace (DHS), and automated workflows using the GERSTEL MultiPurpose Sampler (MPS).
Used Instrumentation
- GERSTEL Thermal Desorber TD 3.5+
- GERSTEL Cooled Injection System (CIS) with special CIS/TD liner
- Cooling modules: UPC Plus, CCD 2, LN₂ cooling option
- GERSTEL Pneumatic Control Box and ePneumatics
- GERSTEL MultiPurpose Sampler (MPS) with TD 3.5+ Automation Option
- Dynamic Headspace modules: DHS 3.5+ and DHS Large
- Tube Conditioner TC 2 for TD tubes and Twisters®
Main Results and Discussion
Performance highlights include rapid thermal cycling with cooling from 300 °C to 30 °C in under 60 seconds (UPC Plus), split ratio control for precise sample introduction, and hold times up to 650 minutes. The system accommodates up to 240 tubes per automation run, supports multiple adsorbents, and delivers robust analyte focusing directly into the GC column. Low thermal mass design reduces cycle times and energy consumption.
Benefits and Practical Applications
The TD 3.5+ offers enhanced sensitivity and reproducibility for a wide range of analytes, from light volatiles to high-boiling compounds. Automation reduces manual intervention, lowers carryover, and increases throughput in environmental monitoring, flavor and fragrance analysis, QA/QC in pharmaceuticals, and forensic fingerprinting.
Future Trends and Possibilities
Advancements may include integration with AI-driven method development, real-time process monitoring, remote operation via digital lab platforms, and coupling with multidimensional GC–MS and high-resolution mass spectrometry. Miniaturization and portable versions could expand field applications and on-site analysis.
Conclusion
With its versatile sample handling, precise temperature control, and seamless automation, the GERSTEL Thermal Desorber TD 3.5+ delivers a comprehensive solution for efficient thermal desorption workflows, supporting diverse analytical challenges in modern laboratories.
Content was automatically generated from an orignal PDF document using AI and may contain inaccuracies.
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