Screw top vials are widely used autosampler vials designed to provide secure sealing, chemical compatibility, and flexible configuration across chromatography workflows. This subcategory includes screw top vials used in HPLC, LC‑MS, GC, and CE applications, available in multiple materials, volumes, and surface treatments to support routine and advanced analytical methods.
Screw top vials are among the most popular autosampler vial formats due to their ease of use and consistent performance. They are offered in a broad range of glass and plastic constructions, vial shapes, and volume capacities, including options designed to reduce adsorption, improve recovery, or support limited sample volumes. Threaded closures allow repeatable opening and resealing while maintaining compatibility with automated injection systems.
This category includes screw top vials manufactured across multiple performance tiers, allowing laboratories to select solutions based on analytical sensitivity and application requirements:
BASIK™ brand, intended for general chromatography applications
MICROSOLV™ brand, pharmaceutical‑grade vials suitable for LC‑MS and GC‑MS workflows requiring low extractables
AQ™ and AQR™ brands, designed to compare with certified and Waters‑equivalent vial formats for mass‑spectrometry applications
RSA™ vials, manufactured from reduced‑surface‑activity glass to minimize analyte interaction, offering very low metal content and high cleanliness
Screw top vials are available in standard formats as well as center‑draining and low‑volume designs, supporting applications where sample volume is limited or precise recovery is required. Selection of the appropriate vial should consider sample chemistry, analytical technique, and autosampler compatibility.
Additional resources:
Understand why 12 × 32 mm autosampler vials may have different volume designations
View available plastic autosampler vial options for specialized applications.
