autosampler vials with standard size for most HPLC and GC 2ml clear or amber autosampler vial,12mm Diameter,32mm Height,9-425 screw top.Our vials with caps are widely used in standard HPLC and GC applications.The vials can be used on all common autosamplers due to their technical geometry, preferentially they are found on Aijiren, HTA, Shimadzu