thomson filter vials for filtration-HPLC Vials Supplier. Thomson Instrument Company FILTER VIAL 0.45UM PTFE 200C Manufacturer: Thomson Instrument Company 65540200 Filter Vial 0.45uM PTFE, w/ Low Evaporation Blue Cap Patented Thomson nano|Filter Vial® Applications include all low volume samples: analysis of enzymes, peptides, DNA, RNA, synthesis reaction intermediates, finished products