Resolution: peak width definition: Difference between revisions
From Mass Spec Terms
→Orange Book entry: add Orange Book term cat using AWB |
→Orange Book entry: Orange Book cat case using AWB |
||
| Line 4: | Line 4: | ||
[[Category:Resolution]] | [[Category:Resolution]] | ||
[[Category:Orange | [[Category:Orange Book term]] | ||
Revision as of 22:08, 14 July 2009
Orange Book entry
For a single peak made up of singly charged ions at mass m in a mass spectrum, the resolution may be expressed as m / ??????????????????????m, where ??????????????????????m is the width of the peak at a height which is a specified fraction of the maximum peak height. It is recommended that one of three values 50%, 5% or 0.5% should always be used. (Note that for an isolated symmetrical peak recorded with a system which is linear in the range between 5% and 10% levels of the peak, the 5% peak width definition is equivalent to the 10% valley definition. A common standard is the definition of resolution based upon ??????????????????????m being Full Width of the peak at Half its Maximum (FWHM) height.
