MicroLiter Analytical Supplies, Inc., A WHEATON® Brand, was founded in 1996 to supply autosampler vials and consumables for the chromatography autosampler market, including consumable vials, closures with septa, inserts, and microplates. MicroLiter offers Certified Class 10,000 clean room packaged autosampler vials and inserts, ensuring minimal particulates from product packaging. A comprehensive offering of crimp seals, screw thread, and snap caps, with a variety of septa configurations, are packaged in tubes to allow the use of a bench top dispenser. This unique dispenser minimizes environmental contamination to the closures once the packaging is opened. The MicroLiter Plate Sampling System (MPSS) is a patented system of microplates with glass inserts and re-sealable closures. The MPSS allows our customers to prep samples using liquid handlers in a 96-well format and transfer samples with minimal amounts of human interaction to the analytical instrument.