How to find the right Lab Autosampler Vials AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Lab Autosampler Vials

Instrument and tray fit: The standard 2 mL vial is 12 x 32 mm; confirm the autosampler accepts it and the vial's closure type Off-dimension vials cause needle strikes, gripper failures and tray jams.
Closure type: Choose 9 mm short-thread screw, 8-425 screw, 11 mm crimp or 11 mm snap to match the lab's method and tools Crimp seals best for volatiles, screw caps are easiest, and snap caps trade seal quality for speed.
Septum material: PTFE/silicone for most HPLC and GC work; pre-slit septa for viscous samples or multiple injections; PTFE-only for single injections that need maximum inertness The septum governs evaporation, coring and extractables in blanks.
Low-volume recovery: Use glass or polymer inserts, or conical or maximum-recovery vials, when the sample volume is small Flat-bottom vials leave residual volume that the needle cannot reach.
Glass grade: Type I 33-expansion borosilicate; deactivated (silanized) glass for analytes that adsorb to glass Active glass surfaces cause analyte loss and pH drift in sensitive assays.

Agilent: Vials and caps designed around Agilent autosamplers, with consistent dimensions.
Waters: Known for its maximum-recovery and certified vial ranges for LC and LC-MS.
Thermo Scientific: Broad range of short-thread and crimp vials, including legacy Chromacol and National Scientific products.
Restek: Chromatography specialist with wide vial and septum options.
Phenomenex: Column maker that also supplies matched vials and caps.

No. They use different thread designs, and caps for one do not seal the other, so buy caps for the exact finish.

Only for trace or LC-MS work where extractables or background matter; standard vials are fine for routine assays.