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Compound Name 
Exact Mass         Tolerance 
Formula 
( e.g. C6H7N5, C5H*N5, C5* )

Instrument Type
EI EI-MS
GC-EI-TOF-MS
ESI CE-ESI-TOF-MS
ESI-IT-(MS)n
ESI-IT-MS/MS
ESI-QqQ-MS/MS
ESI-QqTOF-MS/MS
LC-ESI-FT-MS
LC-ESI-IT-MS/MS
LC-ESI-IT-TOF-MS
LC-ESI-Q-MS
LC-ESI-QTOF-MS/MS
LC-ESI-QqQ-MS
LC-ESI-QqQ-MS/MS
LC-ESI-QqTOF-MS/MS
LC-ESI-TOF-MS
Others CI-MS
FAB-CID-EBEB-MS/MS
FAB-MS
FD-MS
FI-MS
UV-MALDI-TOF-MS

Ionization Mode
Positive   Negative     Both