Vials for Headspace Analysis | Crimp and Screw Top | SPME. All headspace vials listed below are made of the highest quality, borosilicate glass for Headspace analysis. Choose from our original, MicroSolv Brand or the new, economical BASIK™ Brand. Aijiren, CTC, Leap, Perkin Elmer, Shimadzu & Varian Compatible.