Concept:

The new Chromtech Large-Volume Pyrolysis Oven extends the automated pyrolysis workflow by enabling the handling of significantly larger sample amounts. This allows the use of large ceramic sample crucibles, making it particularly suitable for microplastics analysis.

The pyrolysis products are transferred through a heated transfer line onto the PDMS sorbent material inside the OPTIC liner. They are then thermally desorbed, chromatographically separated, and analyzed using GC-MS or GC-MS/MS systems.

Key Benefits:

• Larger sample capacity: Ceramic sample crucibles enable large-volume pyrolysis, improving statistical reliability.

• Automated handling: The PAL RSI equipped with a gripper tool automatically removes the crucible from the stack drawer.

• Highly reproducible process: Precise positioning on the quartz platform and pneumatic locking ensure consistent results.

• Clean analyte transfer: A heated transfer line efficiently transfers the pyrolysis products to the PDMS sorbent in the OPTIC liner.

• Flexible detection: Compatible with all major GC-MS and GC-MS/MS systems for microplastics analysis.

Fully Automated Workflow

From sample crucible to GC-MS/MS analysis

1. Crucible retrieval: The PAL RSI removes the sample crucible from the dedicated stack drawer using a custom gripper tool.

2. Oven loading: The oven lid opens automatically and the crucible is placed onto the quartz platform.

3. Pyrolysis: The oven closes, locks pneumatically, and the programmed pyrolysis process is started by the PAL system.

4. Pyrolysate collection: The pyrolysis products are transferred via the heated transfer line and trapped on the PDMS sorbent in the OPTIC liner.

5. Liner transfer: The PAL RTC transfers the OPTIC liner to the OPTIC injector.

6. GC-MS analysis: Thermal desorption, gas chromatographic separation, and detection by GC-MS or GC-MS/MS.

- Images have been edited for illustrative purposes. -