Talk:Unified atomic mass unit: Difference between revisions

From Mass Spec Terms
Moved from Front Page
Blanked the page
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
John Firth??????????????
02-27-2004 03:32 AM ET (US)


I think the document should include definitions for accurate, nominal and average molecular weights.
----
== New Page Format ==
Ionworker (and others) - I would like to implement a new format that helps to distinguish between comments and suggestions on terms and the "official" proposed terms. To distinguish the "official" term from the old terms and comments, I would like to offset them in a box at the top of the page (see the [[Atomic Mass Unit]] page. The text in this box will be edited by the IUPAC Task Group based on comments and other input. There can be a comments subsection on the main page, but I would like to use the "Discussion" pages for that since they are ready to go for that purpose.
--[[User:Kkmurray|K. Murray]] 22:43, 4 Jan 2005 (CST)
== Accurate, Nominal and Average Mass ==
Per John Firth's comment, I started pages for [[Accurate Mass]], [[Nominal Mass]], and [[Average Mass]].
:-- [[User:Kkmurray|K. Murray]] 22:47, 4 Jan 2005 (CST)
== Moved from Front Page ==
{{sugdef|Atomic Mass Unit|Non-SI [[Wikipedia:physical unit|unit]] of mass, defined as 1/12 of the mass of the carbon-12 atom in its ground state.
The name '''unified atomic mass unit''' and its symbol '''u''' are not widely used in mass spectrometry, partly because of the clumsy name "unified atomic mass unit" which gets even worse when used with a [[Wikipedia:SI prefix|SI prefix]], e.g. 'kilo unified atomic mass unit'.
Therefore it is recomendet to use the supplementary name [[Dalton]]. The Dalton is defined as
: 1 '''Da'''  &#61;  1 '''u'''  &#61;  1.660 5402(10) x 10<sup>??????????????????????????27</sup> '''kg'''  &#61;  1/12 m(<sup>12</sup>C).
The dalton already is widely used in bio mass spec.}}
Definition by [[User:Ionworker]]
(Note that the "=" sign must be replaced with &amp;#61; in calls to templates.)
: -- [[User:Kkmurray|K. Murray]] 11:22, 12 Jan 2005 (CST)

Latest revision as of 16:12, 7 April 2014