amber HPLC sample vials with ptfe liner pp cap Sigma. Autosampler Vials 2ml HPLC Vials 9-425 Amber Vials Lab Vials with Write-on Spot and Graduations,9mm Blue ABS Screw Sealed Cap with Red PTFE B08813RM4P $72.00 $39.24 Features: The amber sample vials are made of grade 1 A-type 5.0 neutral borosilicate glass with a writable label attached to the bottle for sample identification.