1. This gives a mass spectrum , or fingerprint, of the sample. 2. The mass spectrum was further analyzed by Steven Frautschi. 3. The ion will be observed at 45.5 Th in a mass spectrum . 4. Sequest identifies each tandem mass spectrum individually. 5. A notation has been developed for indicating peptide fragments that arise from a tandem mass spectrum . 6. Therefore, the rule is typically only applied to the molecular ion signal in the mass spectrum . 7. A forensic standard for this compound is available, and a representative mass spectrum has been posted on Forendex. 8. The analytes are sometimes involved in electrochemical processes, leading to shifts of the corresponding peaks in the mass spectrum . 9. The candidate sequence with the best matching theoretical tandem mass spectrum is reported as the best identification for this spectrum. 10. A mass spectrum is a plot of the ion signal as a function of the mass-to-charge ratio.
