Cerilliant Corp.: Offers custom synthesis, product certification and reference materials, including standards for drugs and environmental pollutants. Includes online catalog, global distributors, and profile of company in Round Rock, Texas.
QMX Laboratories Limited: Offers GC capillary columns, SPE cartridges, syringe filters, vials, caps and septa, inorganic and organic reference materials, including deuterium labelled isotopes, and accessories for AA, XRF, ICP-AES and MS, from Thaxted, England.