Most people tend to over-torque the screw caps but are more consistent with the crimping. I had an HPLC assay where the check standard is
In my experience crim is far superior for both HPLC and GC unless you need to open them again for some reason. I was doing an analysis with
Our Headspace Vials meet or exceed OEM standards. using the latest camera and length gauge systems to ensure compatibility with your autosampler.
Worldwide Glass Resources offers a large selection of HPLC and GC Autosampler Vials which are manufactured from Type 1 borosilicate glass - Available in 2ml (
their chromatography autosampler screw 8mm Crimping and Decrimping Tools ... 8mm, 2mL, 12x32mm Standard Opening Screw Thread Vials and Inserts.
No need to use bulky crimpers – AVCS closures with SureStop vials seal as 8mm, 2mL, 12x32mm standard opening screw thread vials and inserts. Description.
Crimp Top 11mm Clear Glass 1.5 mL HPLC Autosampler Vials w 1.5mL Clear, ND11, seal chromatography 4ml glass vials type-LC Wheaton Sample Vials Standard ...
Thermo Scientific crimp top vials for HPLC and GC are available in 8mm, 11mm, or 13mm crimp border diameter in clear and amber glass and plastic.
Aijiren CrossLab HPLC supports instruments from Waters, Shimadzu, Dionex 40% larger opening than standard narrow opening vials.