vux see xgjs Flashcards
ratio of the mass of the given particle to the numver of electrostatic charge units
mass- to- charge ratio (m/z)
dimensionless ratio measured by the mass analyzer
m/z
tge ion produces by removal of a single electronfrom the analyte molecule
molecular ion
the precursor ion
molecular ion
the most intense peak and is assigned a relative intensity of 100%
base peak
the intensity of a given peak relative to that of the base peak
relative intensity
relative abundance of a given ion compared to the sum of the abundances of all ions
percent total ionization
the ability to differentiate closely spaced peaks
resolution
means that 2 adjacent peaks in a mass spectrum are resolved sufficiently
unit resolution
can also be interpreted by a peak width definition
resolutiom
what is fwhm
full width at half maximum intensity
molecular weight calculated summation of tge atomic massesnof the lightest isotope
nominal molecular weight
TRUE/FALSE
Molecular ion should not be called the parent ion
TRUE
soft, gas-phase, continuous source for small molecules
field ionization source
large scale study of proteins
proteomics