Agilent Technologies Wilmington, DE USA Alltech Associates Inc. Deerfield, IL USA   Amersham Bioscience Corporation Piscataway, NJ USA Ansys Technologies Inc. (now a part of Varian Inc.)   Analytical Sales & Service Inc. Pompton Plains, NJ USA Applied Separations Inc. Allentown, PA USA   Biotage (Isolute Products) Uppsala, Sweden Diazem Corporation Midland, MI USA   IST Ltd. (now a part of Argonaut Technologies) Macherey-Nagel Inc. Easton, PA USA   Mallinckrodt Baker Inc. Phillipsburg, NJ USA Orochem Technologies Inc. Lombard, IL USA   Phenomenex Inc. Torrance, CA USA Porvair Sciences Ltd. Middlesex, United Kingdom   SiliCycle Inc. Quebec, Canada Spark Holland Emmen, The Netherlands   SPEware Corporation San Pedro, CA USA Supelco Inc. Bellefonte, PA USA   3M Corporation St. Paul, MN USA United Chemical Technologies Inc. Bristol, PA USA   Varian Inc. Harbor City, CA USA Waters Corporation Milford, MA USA   Whatman Inc. Clifton, NJ USA