Choosing the incorrect size of the autosampler vial insert can result in poor reproducibility between sample injections, damage to the autosampler needle, Vials and Inserts | Azer Scientific Price ; Glass vial insert tube, 350uL, w/ blue trim id ring. $231.00 ; 2.0mL Clear Autosampler Vial, Wide Mouth, Crimp Top. $241.00 ; 350µL flat bottom insert.