N 20 Aluminum crimp cap, silver, center hole. MACHEREY NAGEL. Septum: Silicone blue transparent/centrical PTFE-lamination colorless (only centrically laminated with PTFE, typically called Pharma?Fix). Hardness: 45° shore A. Thickness (mm): 3.

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Packaging	Reference	Stock	My Price
x 100u.	MNGL702340	Check availability	Buy

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Characteristic
Cap : Aluminium crimp cap, center hole
Septa : Silicone blue clear / PTFE colorless laminated
Thickness (mm) : 3
Pack (u.) : 100

Macherey-Nagel provides encapsulated N20 Headspace vials, designed for safe, reproducible, and efficient sealing in gas chromatographic analysis. Manufactured from hydrolytic class I borosilicate glass, these vials offer optimal chemical and thermal resistance, ideal for advanced techniques such as GC Headspace and SPME.

The N20 encapsulation allows a more consistent sealing process than traditional crimp closures, significantly improving result reproducibility. With a thinner septum, needle penetration is easier and produces less coring—crucial in SPME applications where septum integrity affects sampling accuracy. The closure design offers a flat surface for the magnet, preventing vial detachment during handling—an issue often seen with over-crimped vials due to convex cap shapes.

Available in clear or amber glass for light-sensitive compounds, N20 encapsulated vials are compatible with most autosamplers and automated systems, offering a robust and reliable solution for laboratories demanding quality and precision in Headspace analysis.

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