New Thermo Scientific Aspire RP30 Desalting Tips Offer a Quick and Clean Solution for Pre-LC/MS Sample Cleanup

San Diego, CA (March 19, 2009) – Thermo Fisher Scientific Inc., the world leader in serving science, has introduced the new Thermo Scientific Aspire RP30 desalting pipette tips that purify, desalt and concentrate peptides or low molecular weight proteins. The Aspire tip is a 200 µl pipette tip containing a bed of proprietary Styrene-divinylbenzene (SDVB) reversed phase resin. The Aspire tips offer higher binding capacity (~4-6 fold higher) compared to conventional C18 desalting tips, allowing purification of up to 30 µg of total peptide from 15-200 µl sample volumes. They are most suitable for desalting and concentrating peptides, low molecular weight proteins (65 kDa or less) and complex protein samples prior to LC/MS and LC/MS/MS analysis, improving sensitivity and data quality. The Aspire tip purification method employs a color-coded, multichannel protocol which streamlines low to medium-throughput sample cleanup. Without the need for centrifugation, twelve samples can be rapidly processed in parallel within 20 minutes.

For more information about the Thermo Scientific Aspire RP30 Desalting Tips, please visit www.thermo.com/aspirerp30.

Thermo Scientific is part of Thermo Fisher Scientific, the world leader in serving science.

About Thermo Fisher Scientific

Thermo Fisher Scientific Inc. (NYSE: TMO) is the world leader in serving science, enabling our customers to make the world healthier, cleaner and safer. With annual revenues of $10.5 billion, we have more than 34,000 employees and serve over 350,000 customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government agencies, as well as environmental and industrial process control settings. Serving customers through two premier brands, Thermo Scientific and Fisher Scientific, we help solve analytical challenges from routine testing to complex research and discovery. Thermo Scientific offers customers a complete range of high-end analytical instruments as well as laboratory equipment, software, services, consumables and reagents to enable integrated laboratory workflow solutions. Fisher Scientific provides a complete portfolio of laboratory equipment, chemicals, supplies and services used in healthcare, scientific research, safety and education. Together, we offer the most convenient purchasing options to customers and continuously advance our technologies to accelerate the pace of scientific discovery, enhance value for customers and fuel growth for shareholders and employees alike. Visit www.thermofisher.com.