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Headspace sampling is a type of sample introduction technique for gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). For headspace techniques, the gas layer, or the headspace above the sample in a vial, is analyzed as opposed to withdrawing a volume from within the sample layer (Figure 1).
Headspace is a technique used to introduce volatile components of a sample into a gas chromatograph (GC). The matrix typically is not amenable to direct injection into the GC system. Examples are liquids and solids such as lotions, blood, soil, polymers, even electronic components.
Headspace sampling is essentially a separation technique in which volatile material may be extracted from a heavier sample matrix and injected into a gas chromatograph for analysis.
The Agilent 7697A Headspace Sampler. The Agilent 7697A Headspace Sampler (HS) is a pressure-loop headspace sampling system with either a 12-vial or 111-vial capacity. If configured for 12 sample vials, the HS uses a single-vial oven to equilibrate the sample at the desired temperature.
1 de mar. de 2012 · Issue 1. Pages: 27–32. The article discusses the fundamentals of instrumentation for headspace sampling, including vial thermostating, pressurization and transfer to the GC inlet.
2 de ago. de 2022 · Headspace sampling is used for the qualitative and/or quantitative analysis of volatile species in samples that can be efficiently partitioned into the headspace gas volume from either a liquid or solid matrix.
Wherever you need support optimizing product and process quality throughout the product lifecycle, LIGHTHOUSE experts are available for you. LIGHTHOUSE Instruments offers headspace analysis solutions for Container Closure Integrity (CCI) testing, oxygen monitoring, and moisture determination.
