18mm Screw Thread Headspace Caps with Septa

This table summarizes the full range of AIJIREN screw-cap headspace vials—available in 6mL, 10mL, and 20mL capacities, clear or amber glass, and with flat and round bottom options. Equipped with Type 5 or Type 7 septa and aluminum cap assemblies, they ensure leak-proof sampling. Suitable for high-throughput GC/HPLC and autosamplers.

These 20mm molded septa and grey butyl stoppers provide stable sealing performance for laboratory vials. Their 3mm thick structure ensures reliable needle penetration, low extractables and clean sample protection. Suitable for routine analysis, sample preparation and storage applications.

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 OEM instrument manufacturer’s specifications.Aijiren Tech vials are available in 10ml, 20ml versions with Screw type.

Aijiren focus on improving the safety and integrity of our Headspace vial. Aijiren provide innovative 20mL 20mm Crimp-Top Headspace Vial to ensure consistent productivity in all separation processes. These 20mL 20mm Crimp-Top Headspace Vial are the best choice for GC. 20mL 20mm Crimp-Top Headspace Vialmade of borosilicate glass.

Aijiren Tech crimp top headspace vials are available in a flat or round bottom style, with clear or amber glass. Headspace closures are available in pre-assembled caps with septums or can be ordered individually. Pressure release, seal with lining, and seal with magnetic lining are also optional.

High-performance 10mL and 20mL 18mm screw thread headspace vials (ND18) with rounded bottom design, crafted from USP Type I borosilicate glass. Provides secure, pressure-resistant sealing without crimping tools, compatible with Agilent, CTC, and Shimadzu autosamplers.

According to different materials, it can be divided into two types, one is domestic borosilicate, and the other is imported first-grade hydrolyzed glass to meet different levels of customer needs.
The optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75mm, and two colorless and brown headspace vials are provided.

Headspace vials are a kind of laboratory vials for top space analysis, with the features of high-temperature resistance and corrosion resistance. 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.

Torticollis headspace sample vial, 10mL or 20mL volume, flat-bottomed or round-bottomed 20mm crimp top vial cap to ensure consistent safety sealing.

18mm Screw Top Headspace Vial optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75.5mm, providing headspace vials in both colorless and brown colors. The 20ml GC analysis headspace vials series strictly controls the HPLC vials mouth to improve the sealing performance. The precision molding bottleneck improves the processing capacity of the autosampler.

Suitable for: 18mm screw top headspace vials
Cap material: magnetic metal
Cap features: 8mm center hole
Color: Metallic Silver
Septa material: PTFE / silicone
Septa size: 17.5*1.5mm
Package: 100pcs/pack

The 20mm septum is made of PTFE/silicone fusion, which has excellent inertness and can be used for multiple injections. The thickness is 3mm, and PTFE is about 0.08mm. The cap of the clamp-top empty bottle is made of metal aluminum

Material: USP1, Borosilicate Glass
20ml Precision Screw Neck 18mm Diameter
Color: Clear / Amber
Bottom: Round Bottom
Vial Size: 22.5*75mm
Cap: 18mm Magnetic Precision Screw Metal Cap
Septa: PTFE/Silicone 17.5*1.3-1.5mm
PTFE/Transparent Silicone Septa 1.3mm for SPME

The material of the headspace sample vials is low-extraction borosilicate glass, which is characterized by low expansion, high temperature resistance, high strength, high hardness, high light transmission and high chemical stability. Headspace vials are suitable for headspace analysis of volatile solids and gases. 20mm crimp headspace vial is widely used in Headspace and GC, GCMS application.

Suit for: 20mm Crimp Top Headspace Vial
Cap Color: Blue
Material: Magnetic Aluminum
Cap Feature: 8mm Centre Hole

Headspace Vials and Closures from Aijiren. Aijiren Technologies headspace vials and closures are engineered to prevent sample contamination and ensure accurate analysis. They are available in a range of sizes and glass types. Choice of 10ml or 20ml vials; Bevelled top for maximum level of seal security.

Aijiren headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish. Headspace vials, septum, and caps can be purchased in various quantities separately or together as convenience kits to fit your laboratory needs.

Headspace vials and closures must form a tight seal for accurate analysis with reproducible results. Available in clear or amber Type I borosilicate glass with crimp or screw thread finishes. The vials are used to heat the sample until the concentration of the liquid and gas phases are in equilibrium. A sample is then taken from the gas phase (headspace) for analysis.

With the use of headspace vials, the whole experiment can be prepared for analysis in an efficient and accurate way. The essence of this experiment is that the volatile sample is heated and vaporized to form a gas in the top space of the headspace vial and then diffuses. Finally, the gas in the vial enters the gas phase detection.

Finally, the gas in the vial enters the gas phase detection. Top space gas analysis with the help of a headspace vial helps automate quality control or sample selection. Using modern instruments, through highly reproducible samples, the entire experiment can be prepared for analysis in an accurate manner.

Headspace Vials Available from Aijiren Tech. Headspace vials are available in volumes from 6 mL to 20 mL in clear glass. Headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish. Headspace vials, septum, and caps can be purchased in various quantities separately or together as convenience kits to fit your laboratory needs.

High-performance 6ml, 10ml, and 20ml 20mm crimp-top headspace vials (ND20) crafted from USP Type I borosilicate glass. Engineered with a beveled neck finish for secure, pressure-resistant sealing in GC analysis.

Suitable for 11mm 2ml Crimp Neck Vials & 20mm Headspace GC Vials
Caps Material: Aluminum
Use Together with PTFE/Silicone Septa or Rubber Stopper
Color: Metal Silver
Vial Septa & Rubber Stopper and Crimpers are also Provided

Aijiren’s 18mm Screw Top Headspace Vial is available in 10ml, 20ml, amber glass and clear glass. And the caliber of Headspace Vial is Screw thread, which is convenient for sealing and opening the headspace bottle. At the same time, the Screw Top Cap of Aijiren’s Headspace Vial has a center hole, which is convenient for the automatic injection needle to enter and exit. The thickness of Septa is easy to pierce and has a tight seal.

Aijiren’s 20mL 18mm Screw Thread Headspace Vial is very popular. It is favored by our customers for its high quality and cheap price. Aijiren is a manufacturer of 20mL 18mm Screw Thread Headspace Vial, so we bring our customers to the factory price.Buy 20mL 18mm Screw Thread Headspace Vial,Choose Aijiren.

Headspace vials are available in clear or amber glass with a round or flat base, with a screw-thread finish. Headspace vials, septum, and caps can be purchased in various quantities separately or together as convenience kits to fit your laboratory needs.

Capacity: 10ml
Temperature: -60—200℃
Material: Borosilicate glass
Color: amber
Specification: 22.5*46mm
Packing: 100 pcs/pack, inner packing shrink plastic box