Push top vials are shell‑style autosampler vials designed specifically for use with Waters WISP™ autosamplers that utilize a 96‑position carousel. This subcategory includes AQ™ brand push top vials and matched cap configurations used in routine HPLC workflows where precise dimensional compatibility and injector safety are required.
These vials are manufactured to exact instrument‑manufacturer specifications to ensure reliable positioning and consistent autosampler performance. When properly matched, push top vials help prevent common autosampler issues such as vial misalignment, injector interference, or needle damage that can occur with poorly toleranced alternatives.
Push top vials in this category are available in 8 × 40 mm formats and are commonly used with 1 mL sample volumes. Included polyethylene caps are produced from low‑extractables plastic using a controlled molding process and feature a thinned penetration area designed to support smooth, reliable needle entry during injection.
Push top vials and caps are supplied as matched sets, ensuring dimensional compatibility between the vial and closure. This configuration supports reproducible injection performance while simplifying laboratory selection and handling in high‑throughput environments.
Selection of push top vials should consider autosampler model compatibility, vial dimensions, and injection requirements to ensure consistent analytical results and reliable instrument operation.
