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SU860097 Supelco

Headspace vial, screw top, rounded bottom (vial only)

volume 20 mL, clear glass vial, thread 18, O.D. × H 22.5 mm × 75.5 mm, pkg of 100 ea



General description

These vials require a special cap with an 18 mm thread. The standard 18-400 threaded caps will not fit this vial. The part numbers for caps that are available for these vials are SU860101(with PTFE/silicone, 1.3 mm thick), SU860102 (with PTFE/butyl, 1.6 mm thick), and SU860103 (with PTFE/silicone, 1.5 mm thick). These caps are made from stainless steel and are magnetic.


Headspace vial may be used for the following:
• In the determination of partition coefficient of ethyl acetate in water at 0° C from independent analyses of the total amount of ethyl acetate present in the vial, by automatic equilibrium headspace gas chromatography and vapor phase calibration (VPC).
• It may be used in the analysis of volatile polar residual solvents present in pharmaceutical products, during development and optimisation of headspace SPME method by GC-MS.
• It may also be used in the isotopic analysis of 18O in the leaf water of C3 and C4 grasses, during establishing a grassland signature in veins, as it was found that grasses with different photosynthetic pathway have different interveinal differences.
• It may also find application, in investigating metabolism by Pseudomonas fluorescens of volatile haloaliphatic hydrocarbons like 1,2-dichloroethane and 1,2-dichloropropane, which are some of the major contaminants of underground aquifers.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Milli-Q® Water Purification Solutions
Protocols & Articles


Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943

The analysis of water for volatile organic compounds is important due to their toxicity. The current methods for this determination lack of sensitivity, selectivity or capability for automation. This...
Frank Michel1, Yong Chen2, Robert Shirey2
1 Sigma-Aldrich (part of Merck KGaA, Darmstadt, Germany), Taufkirchen, Germany 2 MilliporeSigma, Bellefonte PA, USA
Keywords: Carcinogens, Chromatography, Detection methods, Electron capture detector, Environmental, Flame ionization detector, Food Analysis, Gas chromatography, Gas chromatography mass spectrometry, Mass spectrometry, Pharmaceutical, Phase transitions, Sample preparations, Solid phase microextractions, Solvents

Related Content

Fundamentos basicos de microextraccion en fase solida (SPME) y sus aplicaciones [Webinar]

En este webinar presentamos los fundamentos básicos de microextracción en fase sólida (SPME) y sus aplicaciones. SPME es una técnica para análisis de compuestos volátiles y semi-volátiles, fácil de u...
Keywords: Solid phase microextractions

Peer-Reviewed Papers


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SU860101 Magnetic Screw Cap for Headspace Vials, 18 mm thread, PTFE/silicone septum (white PTFE/tranparent blue silicone), septum thickness 1.3 mm, pkg of 100 ea
SU860102 Magnetic Screw Cap for Headspace Vials, 18 mm thread, PTFE-faced butyl septum (grey PTFE/red Butyl), septum thickness 1.6 mm, pkg of 100 ea
SU860103 Magnetic Screw Cap for Headspace Vials, 18 mm thread, PTFE/silicone septum (white PTFE/blue silicone), septum thickness 1.5 mm, pkg of 100 ea

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