Crimp top vials with serum finishes are autosampler vials designed to provide secure, long‑term sealing for chromatography and headspace applications. This subcategory includes crimp top vials commonly used in GC, selected HPLC methods, and long‑term sample storage, where containment of volatile or sensitive samples is critical
Serum‑finish crimp top vials are designed to be used with aluminum or magnetic steel crimp caps, which apply uniform compression of the septum against the vial opening when properly crimped. This closure method offers excellent sealing integrity and durability, making it well suited for applications requiring extended storage or elevated temperature conditions.
Crimp top vials in this category are manufactured from Type I, first‑hydrolytic N51A borosilicate glass, supporting chemical resistance, low extractables, and consistent dimensional quality. This vial format is widely used in gas chromatography, as well as in specific HPLC and storage workflows where threaded or snap closures may be less suitable.
Achieving optimal sealing performance requires the use of a properly designed crimp cap and compatible crimping tool. When applied correctly, crimp cap and vial combinations provide one of the most reliable closure systems available for autosampler vials.
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