Affinity Chromatography Media and Columns Now Available for Laboratory Research Applications

Billerica, Massachusetts --- April 19, 2006 --- Millipore Corporation today announced the availability of its ProSep® affinity chromatography media as well as its Vantage® L chromatography columns for use in laboratory research applications. Previously known for use in large-scale production applications, these products are equally valuable in smaller scale applications. Millipore also offers easy-to-use Montage® Antibody Purification Kits, which include ready-to-use Montage Spin Columns pre-packed with either ProSep-A or ProSep-G media plugs for antibody purification processing by centrifugation.

Millipore’s ProSep range of media is designed primarily for affinity purification of antibodies and other proteins and nucleic acids. ProSep media use porous glass as the support, permeated by interconnecting pores of uniform and precisely controlled size. ProSep chromatography media exhibit chemical and mechanical stability over a range of conditions such as low pH, exposure to detergents, buffers of varying ionic strengths and many organic solvents, and permit high flow rates with low back pressure.

ProSep-vA Ultra media are designed to facilitate highly efficient, cost effective purification of antibodies.
ProSep-G is recommended for the purification of antibodies that do not bind efficiently to protein A, such as rat IgG's and human IgG3.
ProSep-PB media is designed for the affinity chromatography of a variety of glycoproteins, nucleic acids, and other biomolecules containing 1,2 diol functionality.

ProSep-vA Ultra media, ProSep-PB media, and ProSep-G media are available in 10 mL, 50 mL and 100 mL sizes.

Millipore’s selection of laboratory column configurations is the most complete in the market, with five diameters from 11 mm to 44 mm available, as well as three lengths (250, 500, and 1,000 mm). Vantage L columns are easily connected to FPLC®/LPC systems and are resistant to commonly used solvents. These columns incorporate twin adjusters that allow different bed lengths to be used, with an adjuster clip mechanism that provides simple, quick and positive locking of the adjuster tube to enable coarse and fine adjustment.

Millipore’s Bioscience division delivers complete solutions and services for pharmaceutical, academic, life science, clinical and government research laboratories. With more than 50 years of experience, Millipore manufactures and markets several thousands of products that accelerate drug screening and improve sample preparation. For more information, please contact Millipore Tech Service at 1-800-MILLIPORE, 781-533-6000 or visit www.millipore.com/bioscience.

About Millipore

Millipore is a leading bioprocess and bioscience products and services company, organized into two divisions. The Bioprocess Division offers solutions that optimize development and manufacturing of biologics. The Bioscience Division provides high performance products and application insights that improve laboratory productivity. Millipore has a deep understanding of its customers' research and manufacturing process needs, and offers reliable and innovative tools, technologies and services. The Company employs approximately 4,850 people worldwide and posted revenues of $883 million in 2004. For more information about Millipore visit www.millipore.com.

Millipore, Montage, ProSep and Vantage are registered trademarks of Millipore Corporation.
FPLC is a registered trademark of GE Healthcare Bio-sciences AB.

MILLIPORE NEWS
For immediate release
Media Contact:
Karen Gobler
Communications Manager
Millipore Corporation
978-762-5294
karen_gobler@millipore.com

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