The GERSTEL TED-GC/MS solution represents a breakthrough in the analysis of microplastics in complex environmental matrices such as drinking water, beverages, soil, sediments and compost.
Unlike traditional spectroscopic methods, which are laborious and limited to small sample fractions, this technique offers indirect chemical characterization that provides both qualitative and quantitative results, expressed as polymer mass.
Patented TAU (Thermally Controlled Adsorption Unit) interface: developed in collaboration with the Federal Institute for Materials Research and Testing (BAM), the system integrates high-quality components to ensure stability and reliability. This patented interface eliminates high-boiling and non-volatile residues before they can reach the GC/MS system. This allows for unprecedented system stability, reduced background signals, and maximum throughput.
Integrated Automation: thanks to the MPS (MultiPurpose Sampler) and MAESTRO software, the entire cycle (from pyrolysis in the TGA oven to thermal desorption in the GC/MS) is fully automated, drastically reducing manual intervention.
The workflow consists of two phases:
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Thermal Extraction: the sample (up to 100 mg) is heated in the TGA oven. The volatile decomposition products are transported and adsorbed on a GERSTEL Twister® (PDMS) trap positioned at the TAU interface.
- TD-GC/MS Analysis: the loaded Twister® is automatically transferred to the thermal desorption system. The polymeric markers are released and analyzed by GC/MS for final identification and quantification.
Key Features:
- Complete analysis cycle: approximately 2 hours
- System stability: removal of heavy contaminants via TAU interface
- Versatility: characterization of thermoplastic, thermoset and elastomer compounds
- Traceability: monitoring weight loss via TGA curve for quality control of analytical precision.