Certified clear 2ml hplc 9-425 glass vial with writing space Insert for HPLC Chromatography Vial, 150ul micro 6x29mm glass inserts with polyspring 100/pk. CV5508. $19.95. HPLC Chromatography Vial, 2mL CLEAR Glass vial with Writing Area, Flat Base w/ graduations, 9-425 Open Top Ribbed Screw Cap with 9mm White PTFE/Red Silicone Septa 1mm Thick, w/