MS certified transparent autosampler vials-HPLC Autosampler Vials Dec 22, 2021 · Vial Kit: 2ml Clear, Screw Top, RSA™ Vials w/write-on Patch & AQR 22 12 2021 The pre-slit, fitted ultra pure silicone rubber & PTFE septa used is a good choice for HPLC, LCMS & LCMS/MS.