Hplc Vials|Spectrum. Mar 02,2020· Shell vials are an economical choice for many routine HPLC appliions. Clear glass or polypropylene inserts for 9 mm HPLC and GC autosampler vials are available in a variety of configurations with usable volumes from 160 L to 3.5 mL. Image(s) are representative of the product group and not necessarily t.