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Gas chromatography and GC/MS
PFC Air – Cooling for PTV Injectors
Chromtech
PFC stands for PTV Fast Cooling. PFC Air accelerates the cooling of compressed air-cooled PTV injectors in GC and GC/MS systems and replaces additional cryogenic cooling media with electrically generated Peltier colds.
- Manufacturer
- Chromtech
- Product range
- Gas chromatography and GC/MS
- Advice
- Direct from Chromtech
Option for GC and GC/MS
Faster back to the initial temperature.
PTV Fast Cooling
In the case of short gas chromatographic methods, the cooling time of the PTV injector can delay the next measurement start. PFC Air supports compressed air-cooled PTV injectors with electrically generated and stored Peltier cold. As a result, low initial temperatures can be reached more quickly without additionally cooling with liquid nitrogen or liquid carbon dioxide.
- Retrofittable for conventional compressed air-cooled PTV injectors
- Suitable for systems from Agilent, Gerstel, JAS, ATAS and Bruker, among others
- No additional cryogenic cooling media required
- PFC pre-cooling to at least 35 K below laboratory temperature
- Depending on the type of injector at 50 °C oven temperature in about three minutes to below 5 °C
- Faster readiness for the next run and thus higher sample throughput
- Option for gas chromatography and coupled GC/MS and GC-MS/MS systems
Terms: PFC stands for PTV Fast Cooling, meaning rapid cooling of a PTV inlet. PTV denotes a programmable temperature vaporising inlet. GC/MS means gas chromatography with mass spectrometry; GC-MS/MS combines gas chromatography with tandem mass spectrometry. Cryogenic media here are liquid nitrogen and liquid carbon dioxide. A temperature difference of 35 K corresponds to cooling by 35 °C.
In practice
PFC on the Agilent GC/MS system.
Yassin Hardi reports on the installation of an Agilent 8890 GC with 5977B mass spectrometer and Chromtech PFC. The Peltier cooling system preheats compressed air or nitrogen in order to cool the temperature-programmable injector more quickly after running.
The paper mentions applications with large-volume sample application and QuEChERS sample preparation. A CombiPAL-xt takes over the liquid and headspace injection; in addition, a Chromtech He-EcoSaver is installed in the described plant.
QuEChERS is an extraction and cleanup method frequently used for pesticide analysis.
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In practice
PFC in the Evolution3 system in Tübingen.
Yassin Hardi reports on a Chromtech Evolution 3 installation at the University of Tübingen. The GC-MS/MS system combines triple quadrupole analysis with PFC cooling and automated SPDE sample preparation.
PFC cools the compressed air with Peltier elements and thus supports the cooling of the Agilent MMI injector. PAL-based SPDE handles solvent-free dynamic microextraction prior to analysis with Evolution3.
MMI refers here to the versatile, temperature-programmable Agilent injector; SPDE stands for solid-phase dynamic extraction.
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Advice and integration
For the appropriate system configuration.
Whether this product fits your application depends on the sample, method and existing device environment. We clarify the requirements, coordinate the configuration and accompany the integration into your laboratory process.
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