DE-STR (PerSeptive Biosystems/ ABI)
The DE-STR instrument is a time-of-flight (ToF) reflectron mass spectrometer with Maldi ionization. This instrument is primarily utilized for analysis of peptides, small molecules, polymers, and other general applications. With internal standards, this high-resolution instrument provides accurate mass measurements with less than 10 ppm mass error.
For applications of the instrument, see available services.
DE-STR Maldi/ToF Performance and Capabilities
- Maldi/MS (positive or negative ion mode; linear or reflectron mode)
- Nitrogen UV (337nm) laser
- High resolution (i.e. 10,000 resolution at m/z 500)
- Accurate mass measurements less than 10 ppm with internal standard calibration
- Accurate mass measurements generally less than 50 ppm with external calibration
- Femtomole-range sensitivity (e.g. peptides)
The facility is also equipped with several other instruments:
