GC Headspace
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[[Category:Gas Chromatography]] | [[Category:Gas Chromatography]] | ||
[[Category:Headspace]] | [[Category:Headspace]] | ||
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Revision as of 15:22, 22 June 2009
| GC Headspace |
| Application Type | |
| STANDARD | |
| Application ID | |
| GC90210 | |
| Description | |
| GC headspace sample processing with ChemStation. |
Contents |
Abstract
A simple and fairly standardized technique of extracting volatile and semi-volatile substances from raw samples in liquid or solid form is headspace analyzes [1]. A sample is placed in a vial that is sealed by a septum and cap and heated in an incubator for a specific time. Once the content of the vial has reached equilibrium a sampled is extracted and injected into the injection port of a GC. LEAP’s specific equipment the CTC COMBI PAL performs all the tasks for this extraction method unattended. For a sequence of samples up to 96 the COMBI PAL will schedule the vials to be in the incubator/agitator for the same amount of time before a precise sample of headspace gas is extracted by a heated syringe system for a subsequent appropriate injection into a GC. Many variables are programmable over a validated range. 1ml, 2.5ml and 5ml syringes and a solvent-less solid phase micro extraction system are the tools that can be mounted in the injection head.
Screenshots
 LEAP Shell Method |
 Sample queue |
 PAL sample prep method |
 PAL sample injection method |
Photos
 Sample vial tray |
 Magnetic tool tip |
 Bar code reader |
 Agitator |
 Agitator |
 Vial in transfer |
Agilent 6890 GC / 5975C VL MSD |
Some Advantages of Headspace Analysis
- Limited sample preparation
- Improves detection limits
- Reduction in method development times
- Reduction of matrix interference from sample matrix
- Extended life of the GC column
- Reduction of instrument down time
Accessories
Venting with an inert gas before Headspace Vent Tool
Barcode Reading with LEAP Shell software Bar Code Reading
Useful links
General Information on Gas Chromatography
Videos
Movie of the COMBI PAL with Headspace in action. [2]
This workstation application is based on the CTC PAL X, Y, Z syringe only autosampler robot from LEAP Technologies. This extremely flexible, precise, and adaptable robotic platform is available in a variety of lengths and options depending on the requirements of your sample preparation and injections for your LC or GC requirements. Please contact LEAP Technologies on how we can help you get maximized throughput with flexible automation.
