MDS Sciex Signs Distribution Agreement with VWR for US and Canadian Market VWR to Distribute ProteoSpin(TM) Consumable Kits TORONTO, March 11 /PRNewswire-FirstCall/ -- MDS Sciex, the analytical instrumentation and technology solutions division of MDS Inc. (TSX: MDS; NYSE: MDZ), and VWR International, a leading global scientific supplies distributor, announced the signing of a distributorship agreement for MDS Sciex's new line of ProteoSpin(TM) protein purification products and ProteoLadder(TM) protein markers. VWR will have the sales, marketing and support rights for these product lines in the United States and Canada. "We are pleased to have this partnership with MDS Sciex. We are confident that the unique capabilities of the ProteoSpin and ProteoLadder product lines will further enable VWR International to offer a leading edge solution to our customer base," said Jay Christensen, Vice President and General Manager of VWR, "MDS Sciex has a tremendous amount of experience and expertise in thefield of proteomics." "VWR's strong customer focus in different market segments has fueled its continued growth and success. The company has a great reputation for total quality principles, which help to streamline the ordering process and offer the customers high level of service and fast turn around time," said Murray Wigmore, MDS Sciex Senior Vice President, Sales and Marketing. "We are pleased to have VWR as our distribution partner to bring our innovations to customers in North America." AboutProteoSpin ProteoSpin is a newly launched protein sample clean-up and purification consumable kits available in spin column format. ProteoSpin is based on a new technology using processed silicon carbide (SiC) as a chromatographic matrix. This unique technology is designed to speed up the process of producing high- purity protein samples for a variety of downstream applications including gel electrophoresis and mass spectrometry. The ProteoSpin product line includes three micro kits for processing samples up to 50(micro)g of protein - the CBED (concentration, buffer exchange and desalting) Micro Kit, the Detergent Clean-up Micro Kit and the Inclusion Body Isolation Micro Kit. Each kit contains ready-to-use essential components to process both acidic and basic protein samples. About MDS Sciex and MDS Inc. MDS Sciex is the analytical instrumentation and technology solutions division of MDS Inc. At MDS Inc., our 10,000 highly skilled people provide services and products which enable health sciences organizations to enhance the well being of people around the world. We focus on helping discover and test new drugs, assisting doctors to diagnose and treat patients and preventing the spread of disease. Find out more about MDS Inc. (TSX: MDS; NYSE:MDZ), at http://www.mdsintl.com/ or by calling 1-888-MDS-7222, 24 hours a day. About VWR International, Inc. VWR International is a global leader in the distribution of scientific supplies, with worldwide sales of $2.8 billion. VWR's business is highly diversified across a spectrum of products and services, customer groups and geography. The company offers more than 750,000 products, from more than 5,000 manufacturers, to over 250,000 customers throughout North America and Europe. VWR's primary customers work in the pharmaceutical, life science, chemical, technology, food processing and consumer product industries. Other important customers include universities and research institutes; governmental agencies; environmental testing organizations; and primary and secondary schools. VWR International affiliates operate in 18 countries and employ about 6,000 people. The company's mission is to deliver excellence in the distribution of scientific supplies. The VWR International Group is headquarteredin West Chester, Pennsylvania. For more information on VWR International, phone 1-800-932-5000 or write, VWR International, Inc., 1310 Goshen Parkway, P.O. Box 2656, West Chester, PA 19380-0906. DATASOURCE: MDS Sciex CONTACT: Farzana Azam, SeniorManager, Global Marketing & Communications, MDS Sciex, +1 (905) 660-9006 x 2674, ; Brian Kerslake, Senior Marketing Manager, VWR International, Ltd., (905) 813-5215,

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