These headspace vials are made to withstand higher temperatures and internal pressures required for volatile gas analyses. They have very low metal content, 

However, substandard vials, caps, and septa can lead to sample loss, We also recommend a crimp-cap vial if you are working with volatile compounds.

1000/Pk. Size (Metric) Opening, 20 mm. Volume (Metric) Residual, 0.8 mL. Base Style, Square Edge, Round Bottom.

Headspace gas chromatography (Headspace GC) is used to measure volatile compounds that are in the vapor above a solid or liquid sample in a sealed vial.

Standard 20-mL headspace vials were used for field air sampling and calibration. Keywords: solid-phase microextraction; GC-MS; standard addition; BTEX; ...

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 

May 25, 2021 Total Vaporization Solid Phase Microextraction (TV-SPME) ... Transfer 1 µL of this sample to a 20 mL headspace vial using one of the methods ...

vial is sealed, volatile components diffuse into the gas The phase ratio (β) is defined as the relative volume of the headspace compared to.

Suitable for headspace analysis of volatile solids and gases. Store volatile samples to prevent sample evaporation. High-temperature resistance and