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20ml Headspace Vial with Screw Top Caps and Septa for PERKINELMER
https://www.hplcvials.com/products/6-20ml-gc-headspace/18mm.html

20ml Headspace Vial with Screw Top Caps and Septa for PERKINELMER

The 20ml headspace vial is very popular in gas chromatography because of its large capacity, because it allows the vaporized gas in the sample to float on the upper layer and completely separate from the liquid, which is convenient for the autosampler to extract the gas to be detected. The Screw Cap has a center hole to ensure the convenience of the automatic injection needle in and out.

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