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| =Note: The thomson is a non-standard unit in mass spectrometry that has never been widely accepted=
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| The thomson is a unit, whereas ''m/z'' is a quantity.
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| Therfore, the thomson would not replace ''m/z''.
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| Instead, the dimensionless ''m/z'' would be replaced
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| with ''m/q'' which has the unit '''Th'''.
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| :''m/q'' = n '''Th'''
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| where
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| * ''m/q'' is the symbol for a quantity of mass/charge
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| * n is the numerical value of the quantity ''m/q''
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| * '''Th''' is the symbol for the unit thomson
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| ''Example:''
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| * The base peak of H2O appears at 18 thomson.
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| == Suggested Definition ==
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| New format - suggested definitions to appear in Discussion tab:
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| {| border="2" cellpadding="10" cellspacing="0" align="center"
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| ! style="background:#66ff66;" | Thomson
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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]].
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| Cooks, R. G. and A. L. Rockwood (1991). "The 'Thomson'. A suggested unit for mass spectroscopists." Rapid Communications in Mass Spectrometry 5(2): 93.
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| "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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| "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 [[u]]/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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| |}
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| == Moved from Front Page ==
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| ''' [[Mass Spec Desk Reference]] '''
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| See [[Mass Spec Desk Reference]] page 27 for an argument against the adoption of this term.
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| --[[User:Kkmurray|K. Murray]] 21:42, 17 Jan 2005 (CST)
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