Autosampler-Aijiren HPLC Vials
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24mm screw thread vial cap with 15mm center hole and PTFE/Silicone septum for purge and trap VOC analysis

How to Choose the Right 15mm Center Hole 24mm Screw Thread Vial Cap for Purge and Trap

The 15mm center hole 24mm screw thread vial cap is the key to a leak-tight seal in purge and trap analysis of volatile organic compounds. This article explains the 24-400 thread standard, the role of PTFE/Silicone septa, pre-slit vs solid septum choices, compatibility with major autosampler brands, and best practices for seal integrity to ensure reproducible VOC results.
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