Accurate mass: Difference between revisions

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{{Rev7|
{{Rev7|acronym=
'''accurate mass'''
|def=
 
Experimentally determined mass of an [[ion]] of known charge.
Experimentally determined mass of an [[ion]] of known charge.


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:Note 2: Accurate mass and [[exact mass]] are not synonymous. Accurate mass refers to a measured mass and exact mass refers to a calculated mass.
:Note 2: Accurate mass and [[exact mass]] are not synonymous. Accurate mass refers to a measured mass and exact mass refers to a calculated mass.


Related terms: [[average mass]], [[exact mass]], [[monoisotopic mass]], [[nominal mass]].
|rel=[[average mass]], [[exact mass]], [[monoisotopic mass]], [[nominal mass]]
 
|ref=O. D. Sparkman. [[Mass Spec Desk Reference]]. Global View Publishing, Pittsburgh (2006).
O. D. Sparkman. [[Mass Spec Desk Reference]]. Global View Publishing, Pittsburgh (2006).


A. W. T. Bristow, K. S. Webb. J. Am. Soc. Mass Spectrom. 14, 1086-1098 (2003).
A. W. T. Bristow, K. S. Webb. J. Am. Soc. Mass Spectrom. 14, 1086-1098 (2003).
}}
}}
=Other versions=
{{Def2|
An experimentally determined mass of an [[ion]] that is used to determine an elemental formula. For ions containing combinations of the elements C, H, N, O, P, S, and the halogens, with mass less than 200 [[u]], a measurement with 5 ppm uncertainty is sufficient to uniquely determine the elemental composition.
}}
{{rev5|
Experimentally determined mass of an ion of known charge that is used to determine elemental composition.
Note: accurate mass and exact mass are not synonymous. The former refers to a measured mass and the latter to a calculated mass.
Related terms: [[average mass]], [[exact mass]], [[monoisotopic mass]], [[nominal mass]].
|
#[[Mass Spec Desk Reference]]
#A. W. T. Bristow, K. S. Webb. J. Am. Soc. Mass Spectrom. 14, 1086-1098 (2003).
}}
{{incorrect|
Page 61:  Suggests using ''measured accurate mass''
}}
{{ProblemTerm}}
== See also ==
*[[Average mass]]
*[[Atomic mass Unit]]
*[[Nominal Mass]]


[[Category:Mass]]
[[Category:Mass]]
{{DEFAULTSORT:Accurate Mass}}
{{DEFAULTSORT:Accurate Mass}}

Revision as of 17:21, 11 October 2012


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