Thermo Scientific™ 9mm Autosampler Inserts. Clear glass or polypropylene inserts for 9mm HPLC and GC autosampler vials are available in a variety of configurations with usable volumes from 160μL to 3.5mL. Pricing and Availability. Thermo Scientific™ 20mm Crimp Seals with Septa for Headspace Vials.