HPLC Sampler Vial for Laboratory Test on Sale2ml Snap Top HPLC Vial with Cap for Sale-Aijiren HPLC Vials The snap neck HPLC vial is compatible with either crimp and snap vial instrument. There are no special tools requiring to remove the cap. 2ml snap HPLC vials are recommended for short term sample storage and non-volatile samples because the