Category:Headspace
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Revision as of 21:46, 24 August 2009
Basic Principles of Headspace Analysis
A headspace sample is normally prepared in a vial containing the sample, the dilution solvent, a matrix modifier and the headspace. Volatile components from complex sample mixtures can be extracted from non-volatile sample components and isolated in the headspace or gas portion of a sample vial. A sample of the gas in the headspace is injected into a GC system for separation of all of the volatile components.
Phases of the Headspace Vial
G = the gas phase (headspace)
The gas phase is commonly referred to as the headspace and lies above the condensed sample phase.
S = the sample phase The sample phase contains the compound(s) of interest. It is usually in the form of a liquid or solid in combination with a dilution solvent or a matrix modifier.
Once the sample phase is introduced into the vial and the vial is sealed, volatile components diffuse into the gas phase until the headspace has reached a state of equilibrium as depicted by the arrows. The sample is then taken from the headspace.
LEAP provides automated workstation instrumentation solutions based on the LEAP CTC PAL X, Y, Z syringe only autosampler robot from LEAP Technologies. This extremely flexible, precise, and adaptable liquid handling robotic platform is available in a variety of lengths and options depending on the requirements of your sample preparation and injections for your UHPLC, LC or GC chromatography. Please contact LEAP Technologies on how we can help you get maximized throughput with flexible pipetting automation solutions.
Contact LEAP
For additional information about this please contact LEAP Technologies for detailed information
Pages in category "Headspace"
The following 5 pages are in this category, out of 5 total.
