ELITE Mass Spectrometer

Our MALDI-TOF mass spectrometer is the 2 meter Voyager DE.str; supplied by PerSeptive Biosystems, Inc.

The single stage reflector instrument is equipped with time-lag focusing optics, called "delayed extraction". With this, we achieve accuracy in the low ppm range and resolution sufficient to make accurate mass assignment. Thus far we have achieved accuracy for small peptides of better than 10ppm with internal calibration, and resolution exceeding 20,000 FWHM on insulin (5729.6 u). Therefore, we are able to report monoisotopic masses for ions up to about 6 kDa. Those seeking this level of resolution and accuracy are encouraged to work closely with this laboratory prior to submitting samples for analysis.

PPMAL home page