20ml Screw Headspace Vial
Wholesale 20ml screw headspace vials (18mm precision thread) with magnetic caps and PTFE/Silicone septa for GC autosamplers. Factory-direct pricing.
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.
Aijiren Tech headspace vials are manufactured to provide uniform glass thickness which insures even heat distribution for consistent sampling reliability. All Aijiren Tech headspace vials meet or exceed the OEM instrument manufacturer’s specifications. Aijiren Tech vials are available in 6ml, 10ml, and 20ml versions with Screw and Crimp types.
20ml Screw Headspace Vial Specifications
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Volume: 20ml
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Dimension: 22.5 x 75mm
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Color: Amber and Clear
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Neck: Precision Screw neck
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Neck Diameter: 18mm
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Material: Borosilicate Glass / 1st hydrolytic class glass
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Cap: 18mm Magnetic Precision Screw Metal Cap