Our vials and closures are designed, engineered, and manufactured for optimum performance in HPLC, GC/MS, LC/MS, and high-throughput analysis. In addition to specialized products, we offer: Caps, Crimp Seals & Stoppers; Headspace & SPME vials; Micro Reaction Vials; Glass and polyethylene scintillation vials ; Polypropylene and polymethylpentene (TPX) vials;