Talk:Thomson: Difference between revisions
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* n is the numerical value of the quantity ''m/q'' | * n is the numerical value of the quantity ''m/q'' | ||
* '''Th''' is the symbol for the unit thomson | * '''Th''' is the symbol for the unit thomson | ||
== Suggested Definition == | |||
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| A new [[Wikipedia:physical unit|unit]] of the [[Wikipedia:physical quantity|physical quantity]] mass/charge. The symbol ''m/q'' would then be used in place of the dimensionless [[m/z]]. | |||
Cooks, R. G. and A. L. Rockwood (1991). "The 'Thomson'. A suggested unit for mass spectroscopists." Rapid Communications in Mass Spectrometry 5(2): 93. | |||
"The Thomson (Th), a unit for mass-to-charge ratio, was proposed to alleviate problems with imprecise terminol. generated by the advent of multiply charged ion [[mass spectroscopy]]. The definition proposed for the unit is: 1Th == 1 [[amu]]/atomic charge." | |||
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| ''This is a Suggested Definition and should only appear under a discussion tab. Note that more than one suggested definition can appear in one discussion'' | |||
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Revision as of 23:36, 6 January 2005
The thomson is a unit, whereas m/z is a quantity. Therfore, the thomson would not replace m/z. Instead, the dimensionless m/z would be replaced with m/q which has the unit Th.
- m/q = n Th
where
- m/q is the symbol for a quantity of mass/charge
- n is the numerical value of the quantity m/q
- Th is the symbol for the unit thomson
Suggested Definition
New format - suggested definitions to appear in Discussion tab:
| Mass Resolving Power |
|---|
| A new unit of the physical quantity mass/charge. The symbol m/q would then be used in place of the dimensionless m/z.
Cooks, R. G. and A. L. Rockwood (1991). "The 'Thomson'. A suggested unit for mass spectroscopists." Rapid Communications in Mass Spectrometry 5(2): 93. "The Thomson (Th), a unit for mass-to-charge ratio, was proposed to alleviate problems with imprecise terminol. generated by the advent of multiply charged ion mass spectroscopy. The definition proposed for the unit is: 1Th == 1 amu/atomic charge." |
| This is a Suggested Definition and should only appear under a discussion tab. Note that more than one suggested definition can appear in one discussion |
