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Extraction of Intact Proteins Using the GPR System, Followed by LC-ESI-MS Analysis

The Gel Protein Recovery (GPR) System has been developed to revolutionize the extraction of proteins from polyacrylamide gels. Proprietary developments in controlling electrokinetic flow have led to the development of a novel method for coupling high efficiency and robust electroelution with sample recovery decoupled from the electric field. The GPR-850 instrument delivers 500 V per channel for rapid sample extraction, typically within 15 minutes. Each GPRchip contains an array of channels for processing up to 8 samples simultaneously. The combination of high voltage electroelution and the 8-plex GPRchip™ permit highly efficient sample recoveries with excellent throughput.

...innovations for bioanalytics