18mm Screw Headspace Vial
    • screw headspace cials
    • screw neck headspace vials
    • 10ml headspace vials
    • 20ml screw neck gc vials
    • screw gc vials with caps
    • screw headspace vial package
    screw headspace cials

    18mm Screw Headspace Vial

    Volume: 10ml, 20ml
    Dimension: 22.5*46mm, 22.5*75mm
    Color: Amber and Clear
    Neck: Precision Screw neck
    Neck Diameter: 18mm
    Material: Brosilicate Glass/1st hydrolytic class glass
    Cap:18mm Magnetic Precision Screw Metal Cap
    product description


    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.

    The material of Headspace Vials is low extractable Borosilicate glass with low expansion rate, high-temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. Headspace Vials suitable for headspace analysis of volatile solids and gases.

    Aijiren Tech screw 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 screw GC vials are available in 10ml, 20ml versions.

    The Aijiren screw headspace vial has a beveled neck for safe sealing, uniform glass thickness for uniform heating distribution and stability, and a sturdy design that is easy to use. 

    Available in clear and amber USP1 borosilicate glass with screws and crimp top. 

    The round bottom vial distributes the internal pressure generated under the high temperature of the glass surface, and it is easier to handle the vial being lifted from the tray by the robot arm. 

    The screw-head empty vial has 18mm Magnetic cap, which is suitable for autosampler using magnetic transportation, while crimping the top bottle to be used with aluminum cap

    The 18mm Screw Neck Vials with Magnetic Screw Seals for CTC is novelties in the crimp neck dominated Headspace market. However, especially for the hard to crimp magnetic caps, screw closures are a convenient alternative.

    The vials are preferentially used on instruments : CTC PAL , Varian, Gerstel, Atas, Shimadzu, Agilent.

    The caps with an aluminium skirt and a magnetic central disk, are easy to crimp and decap.

    Product Name

    Precision Screw Headspace Vials


    10ml & 20ml


    Clear & Amber


    UPS1, Borosilicate Glass


    Precision Screw Neck


    Round Bottom


    18mm Magneticc Precision Screw Metal Cap


    22.5*46mm(10ml); 22.5*75mm(20ml)



    18mm Screw Headspace Vial Advantages:

    1. Material: USP1, Borosilicate Glass

    2. Box packaged tpo minimize sample bottle damage.

    3. Manufactured under strict quality, which ensures dimensional consistency from lot-to-lot

    4. Suitable for headspace analysis of volatile solids and gases.

    5. Store volatile samples to prevent sample evaporation

    6. High temperature resistance and corrosion resistance

    7. Mainly used in gas chromatography analysis for headspace analysis.

    8. No risk of incorrectly sealed vials as is the case with crimping

    9. More convenient to close and open, especially as magnetic crimp caps are very hard to crimp

    10. Lower coring and protection for the needle due to thinner septa

    11. Universal use for Headspace and SPME due to thinner septa

    12. Special pre-cut septa (silicone layer is slitted but PTFE remains intact) for safe penetration of the sensitive SPME phase with hardly any coring

    13. Tested and approved by CTC for their Combi PAL (Gerstel, Atas, Agilent), also recommended by Agilent for their G1888A samplers, by Shimadzu for AOC5000 and for PerkinElmer TurboMatrix autosamplers 

    Matching bottle cap and gasket:

    The 18mm septa uses only the highest quality materials to ensure proper function, and is especially suitable for gas chromatograph applications, ensuring that the septa will not fall into the sample vial during sample injection. The septa are made of PTFE/silicone fusion, they are made of TFE/silicone fusion, and have excellent inertness and can be used for multiple injections. The thickness of the septum is 1.5mm.

    The screw headspace series bottle caps combine innovation with time-saving convenience, precise manufacturing tolerances, and a controllable manufacturing environment. The bottle cap produced by this patented method truly combines the septum and the cap at the molecular level to avoid excessive evaporation and keep the sample bottle properly sealed.

    Related Service

    1) OEM Manufacturing welcome: Customized Logo, Customized Package

    2) Professional After-sales Service Team

    3) Fast delivery, all goods can be shipped in 3-7days. Large qty products are in stock for customer.

    4) Shipping way: Based on customer’s difference situation using difference shipping ways, By air, By sea, By train,etc.

    5) Delivery information:
    Kits include 10ml or 20 ml clear glass precision screw neck headspace vial (22.5*46mm, 22,5×75,5 mm), magnetic screw cap silver with 8 mm central hole and septum.

    Company Introduction

    Founded in 2007, Zhejiang Aijiren, Inc. specialized in chromatography consumables, such as autosampler vial for HPLC, headspace vial, GC vials, micro inserts, septa and caps, syringe filter, etc. 

    covers more than 10000 square meters, and has clean workshop more than 2000 square meters. 100, 000 class cleaning room;  

    15 years export experience, exprot to more than 70 countries, 2000+ customs around the world; 

    IS0, GMP & Bureau Veritas certificated, this is how we keep good quality and competitive prices for global valued customers. 

    Aijiren has own R&D Center and Quality Controll Center to keep products in high quality.

    More than 10 years experience for automatic analytica technique

    Passed ISO9001:2015  quality management system certification, RoHS compliance can also be provided.

    How to confirm product quality before placing orders?
    After production, all articles are delivered to QC center, only qualified products can be release to the next procedure.
    Meanwhile, you are welcome to ask for samples for testing.
    How to star order or make payment?
    Proforma Invoice will be sent first after confirmation or order together with our bank infomations.
    Pay by T/T, Westren Union or Alipay.
    What is the charge standard about the Samples?
    1) For our first cooperation, free samples will be provide buyer afford the shipping cost.
    2) For our old customers, we will send free samples, even though new design samples, when have stocks.
    3) Samples delivery date is 24 to 48 hours, if have stocks. Customer design is about 3-7 days.
    Can you provide OEM service?
    Yes, we had already do OEM service for more than 4 world famous Brand in chromatography area.
    What is the MOQ?
    For vials, caps and syringe filters MOQ is 1pack(100pcs), for hand crimper/decrimper MOQ is 1pack(1pc).
    Related products