What are Headspace Vials
Simply put, the headspace analysis is to analyze the gas present in the headspace vial. The laboratory vials used for headspace analysis are called headspace vials.
The essence of this experiment is that the volatile sample is heated and volatilized to form a gas in the space on the top of the sample vials and then diffused. Eventually allowing the top gas in the gas chromatograph vials above the volatile sample to enter the gas phase detection.
Adaptation: top gas chromatography
When the volatile or semi-volatile mixture has a higher boiling point, we need to heat it up to get it vaporized at the top. In this process, the liquid (solid or solid-liquid coexistence) sample is at the bottom, so the substance in the top gas can eventually be measured without touching the liquid in the sample bottle.
Top space gas chromatography is most suitable for the sample analysis of light component volatiles. This measurement technique can be used to analyze the gas in the top space of the liquid sample and apply to the solid dispersion method.
Top space gas analysis also helps in automated quality control or sample screening. This is a highly reproducible sample using modern instruments, enabling the entire experiment to be prepared for analysis in an efficient and accurate manner.
GC headspace technique is used to analyze the gasification of solid and liquid samples of volatile organic compounds. In recent years, the popularity of this technology has been recognized by laboratories around the world, especially for the analysis of residual organic solvents in alcohol, blood and pharmaceutical products.
Other common applications include industrial analysis, detection of volatile substances such as chemicals and plastics, flavor compounds in beverages and foods, perfumes and cosmetics.