User`s guide

Appendix A Specifications
A-8 PerSeptive Biosystems
A
Table A-8 Voyager-DE STR Mass Spectrometer Specifications
Condition Specification
Reflector Single-stage with optimized optics for
PSD Analysis
Flight tube (horizontal) • Linear mode—2.0 m
• Reflector mode—3.0 m
Ion source Two-stage
Ion source voltages Tunable:
• Accelerating Voltage—Up to 25,000 V
• Grid Voltage—Range determined by
Accelerating Voltage
Laser Nitrogen, 337 nm, 3 ns pulse
Vacuum system • Dual differential turbomolecular pumping for
ultra-high vacuum
• Multi-vacuum gauge capability for
independent monitoring of source and
analyzer regions
Ion detection Positive and negative
Sample analysis • 100-well sample plates
• Manual control using control stick or software
• Sequence Control software for automated
analysis
Mass range
≥
300,000 Da
Upper limit set by suitably ionized biomolecule.