Vials Information - Chromatography - MACHEREY-NAGEL. All autosampler vials of our program are made from 1st hydrolytic class glass. Only snap cap vials for storage of powdery samples and the blow-molded glass The Importance of Autosampler Vial Selection in the GC-MS . Oct 15, 2011 borosilicate glass vials was carried out with a GC method