Direct-From-Sample Ion Source Technology
Waters Corp., Milford, Mass., introduced the Rapid Evaporative Ionization Mass Spectrometry (REIMS) Research System with iKnife sampling, combining direct-from-sample ionization with high-performance time-of-flight mass spectrometry and intuitive analytics. The system eliminates the need for sample preparation and chromatographic separation, providing food researchers with near-instantaneous data acquisition.
In REIMS, direct, rapid heating of the samples leads to the formation of vapor that is rich in sample-specific chemical information. The vapor is taken directly into the mass spectrometer (XevoG2-XS QTof or SYNAPTG2-Si HDMS) where the molecules are analyzed by time-of-flight mass spectrometry. The
REIMS research system also features Progenesis QI software, which offers an intuitive, workflow-based approach to process large data sets using powerful multivariate statistical methods. This quickly highlights differences within and between samples, allowing them to be grouped in an objective and unbiased way. Key molecular components can be identified and characterized, and results can be exported to take advantage of other informatics platforms, including molecular pathway analysis tools.