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Wholesale 20mm 20ml Crimp Top Headspace Vial Supplier

The 20mm 20ml Crimp Top Headspace vial has a 20mm outer diameter, which is the standard size for crimp-style headspace vials. The 20ml capacity refers to the volume of the vial, meaning it can hold up to 20 milliliters of liquid or gas sample. These vials are typically made from high-quality borosilicate glass. Borosilicate glass is chosen because it is resistant to chemical reactions and can withstand high temperatures, making it ideal for containing volatile samples without contamination. A headspace vial is used in the process of top – gas chromatography. When detecting volatile or semi-volatile mixtures with high boiling points, we need to heat them to vaporize them at the top. In this process, since the liquid samples are at the bottom, the material in the top gas can be measured without touching the liquid in the sample vial.

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The 20mm 20ml Crimp Top Headspace vial has a 20mm outer diameter, which is the standard size for crimp-style headspace vials. The 20ml capacity refers to the volume of the vial, meaning it can hold up to 20 milliliters of liquid or gas sample. These vials are typically made from high-quality borosilicate glass. Borosilicate glass is chosen because it is resistant to chemical reactions and can withstand high temperatures, making it ideal for containing volatile samples without contamination. A headspace vial is used in the process of GC chromatography. When detecting volatile or semi-volatile mixtures with high boiling points, we need to heat them to vaporize them at the top. In this process, since the liquid samples are at the bottom, the material in the top gas can be measured without touching the liquid in the sample vial.

Feature

1. The 20mm size is a standard in the industry, making these 20ml Crimp Top Headspace vials compatible with a wide range of laboratory instruments, including autosamplers and sample preparation equipment. This compatibility simplifies laboratory workflows.
2. A 20mm crimp headspace vial is widely used in Headspace and GC, GCMS application.
3. Caps are made of high-quality lacquered aluminum, 0.010″ thick
4. Many septa options are available and use only the highest quality materials to ensure proper function and can be pre-slit to ease needle penetration
5. High-quality silicone compounds are used to ensure proper re-sealing and reduced chances of coring
6. Septa is pre-conditioned to ensure low bleed
7. Aijiren Tech crimp top headspace vials are available in a flat or round bottom style, with clear or amber glass.

Flat / Rounded bottom selection guide

Flat bottom vials maximize heating efficiency when used with the bottom. Round bottom vials distribute the internal pressure created at high temperatures across the glass surface. Round bottom vials are more easily handled by robotic arms that lift the vial from the tray. A rounded bottom is more sturdy and thus more resistant to the high pressure within the vial during the heating process. Furthermore, the vial slides more easily into the heating block when being transported by a magnet. A flat bottom might be necessary when vials have to run within the instrument on a slightly downward tendency.

Flat bottom vials feature a longer neck for fit with Carlo Erba™ and Agilent™ units. Round bottom vials are designed for Perkin Elmer™, Tekmar™, and Varian™ units

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