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==Recommendations Published==
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Welcome to the '''{{SITENAME}}''' wiki of mass spectrometry terminology.


{| border="0" cellpadding="20" cellspacing="10" align="center"
This site was created in 2004 to support the IUPAC project '''[https://iupac.org/projects/project-details/?project_nr=2003-056-2-500 Standard definitions of terms relating to mass spectrometry]''' and was open for comment between 2004 and 2006. It now contains links to numerous mass spectrometry terminology definitions from the IUPAC [[Gold Book]], [[Orange Book]], [[:Category:Final|2013 Recommendations]], and [[:Category:Mass spectrometry terms|other sources]]. As of {{CURRENTDAYNAME}} {{CURRENTMONTHNAME}} {{CURRENTDAY}}, {{CURRENTYEAR}}, the site contains [[Special:Statistics|{{NUMBEROFARTICLES}}]] entries.
|-
! style="background:#dfdfef;" | <big><big>[http://iupac.org/publications/pac/asap/PAC-REC-06-04-06/pdf/ Definitions of terms relating to mass spectrometry]


(IUPAC Recommendations 2013)
==Mass spectrometry terms==
:<big>[[:Category:Final|IUPAC Recommendations 2013 Index]]</big>


has been published in ''[http://iupac.org/publications/pac/asap/PAC-REC-06-04-06/ Pure and Applied Chemistry]'' '''</big></big>
:<big>[[:Category:Mass spectrometry terms|Complete index of mass spectrometry terms]]</big>
|}


==Mass Spectrometry Terms and Definitions Project==
:<big>[[Special%3ASearch|Search the Wiki]]</big>
The goal of this site is to support the IUPAC project [http://www.iupac.org/projects/2003/2003-056-2-500.html Standard definitions of terms relating to mass spectrometry] that has resulted in the publication of [http://dx.doi.org/10.1351/PAC-REC-06-04-06 Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013)].


The wiki was open for comment between 2004 and 2006, was maintained as a reference from 2006 to 2013, and now contains links to numerous mass spectrometry terminology definitions from the IUPAC Gold Book, Orange Book, 2013 Recommendations, and other sources.
==Links==
 
*<big>[[IUPAC resources]]</big>
There are currently [[Special:Statistics|{{NUMBEROFARTICLES}}]] entries in {{SITENAME}} as of {{CURRENTDAYNAME}} {{CURRENTMONTHNAME}} {{CURRENTDAY}}, {{CURRENTYEAR}}.
*<big>[[ASMS resources]]</big>
 
*<big>[[Terminology publications]]</big>
 
*<big>[[Controlled vocabularies]]</big>
:<big><big>Browse the
::[[:Category:Final|IUPAC Recommendations 2013]]
::[[:Category:Orange_Book_term|IUPAC Orange Book MS Terms]]
::[[:Category:Gold_Book_term|IUPAC Gold Book MS Terms]]
::[[:Category:Mass spectrometry terms|Full list of mass spectrometry terms]]
</big></big>
 
==Frequently asked questions==
;Where can I get a PDF copy of the mass spectrometry terms document?
:The document can be found here: http://pac.iupac.org/publications/pac/85/7/1515/
 
;Can I republish the document contents?
:Contents of the document can be reproduced as long as IUPAC is acknowledged and the source is referenced and linked: "''Republication or reproduction of [http://pac.iupac.org/publications/pac/85/7/1515/ this report]
 
;What was the IUPAC project that supported this work?
:It was [http://www.iupac.org/nc/home/projects/project-db/project-details.html?tx_wfqbe_pi1&#91;project_nr&#93;=2003-056-2-500 Project 2003-056-2-500]
 
;Before this, what was the most recent set of recommendations for mass spectrometry terms?
:The last IUPAC mass spectrometry recommendations were published in [http://dx.doi.org/10.1351/pac199163101541 1991].
 
;These definitions are locked in until 2035 then?
:No. The complete list of mass spectrometry terms should be updated every 5 to 10 years through community discussion and peer review as it had been prior to 1991. Individual terms, particularly contentious ones (e.g. [[resolution]]/[[resolving power]], [[slashes and hyphens]], [[CAD]]/[[CID]]), should be discussed and consensus definitions should be published in the peer-reviewed literature in the interim.
 
;Were the definitions presented for public comment?
 
;Were the definitions peer reviewed?
:The manuscript was reviewed in nine drafts and received sixty individual reviews between initial submission in April of 2006 and acceptance in March of 2013.
 
;I found a definition of a term and I think that it is incorrect; what do I do?
:If you are convinced that a particular term is not correct, write a letter to the editor of a mass spectrometry journal or submit a short article with your new or modified definition(s) and rationale. Suitable references will strengthen your argument. Examples of short articles or letters to the editor on terminology can be found here: [http://dx.doi.org/10.1002/bms.1200111109 ], [http://dx.doi.org/10.1002/rcm.5129], [http://dx.doi.org/10.1016/1044-0305(91)80026-4], [http://dx.doi.org/10.1016/1044-0305(92)87078-D], [http://dx.doi.org/10.1002/rcm.1290050210], [http://dx.doi.org/10.1002/oms.1210020302] Additionally, IUPAC supports projects aimed at definitions of specific terms, for example the definition of the hydrogen bond.[http://iupac.org/nc/home/projects/project-db/project-details.html?tx_wfqbe_pi1&#91;project_nr&#93;=2004-026-2-100] See the IUPAC "Project Submission and Approval Process" page.[http://www.iupac.org/home/projects/project-submission-and-approval-process.html]
 
;You didn't include my favorite term; what do I do?
:See above. Write a letter to the editor with your new term and definition.
 
;How do I label the x-axis of a [[mass spectrum]]? And what are the units?
:Use ''[[m/z]]'' and it is dimensionless and it is an abbreviation, not a symbol. Do not use m/z([[Da]]), m/z([[u]]), m/e, and especially not m/z([[amu]]). The [[thomson]] unit is not recommended.
 
;Is [[mass resolution]] &Delta;m or m/&Delta;m?
:The recommendations document retains the Gold Book definition m/&Delta;m for resolution.[http://goldbook.iupac.org/R05318.html] There is considerable division regarding m/&Delta;m vs. &Delta;m and resolution vs. resolving power but the project task group found insufficient support for an alternative to the current Gold Book definition. Individuals pushing for a "&Delta;m is resolution and m/&Delta;m is resolving power" paradigm (or any alternative set of definitions) must work to achieve consensus on their definition, for example through an IUPAC project specifically for that term. 
 
;What about resolving power?
:See [[resolving power]] and the comments above on [[mass resolution]].
 
;When to use [[slashes and hyphens]] for combined methods? Is it [[GC/MS]] or [[GC-MS]], [[LC/MS]] or [[LC-MS]], etc?
:The current recommendation is to use either.
 
;Is it [[collision-induced dissociation]] (CID) and [[collisionally activated dissociation]] (CAD)?
:The current recommendation is to use either.
 
;Should I use the term [[daughter ion]]?
:Use [[product ion]] instead (also [[precursor ion]] not [[parent ion]]).
 
;Is [[ion-molecule reaction]] correct?
:No, use the slash: [[ion/molecule reaction]].
 
;Is [[TIC]] the recommended abbreviation for [[total ion current]] or [[total ion chromatogram]]?
:Use TIC for total ion current - use [[total ion current chromatogram]] ([[TICC]]) for the latter.
 
;Is [[MRM]] recommended?
:Yes, this was changed from an earlier recommendation. See [[multiple reaction monitoring]], [[selected reaction monitoring]], and [[consecutive reaction monitoring]].

Latest revision as of 11:22, 13 March 2024

All terms | IUPAC 2013 | Gold Book terms | Orange Book terms | Acronyms | Deprecated terms | Obsolete terms | Draft definitions | Stub pages

Welcome to the MS Terms wiki of mass spectrometry terminology.

This site was created in 2004 to support the IUPAC project Standard definitions of terms relating to mass spectrometry and was open for comment between 2004 and 2006. It now contains links to numerous mass spectrometry terminology definitions from the IUPAC Gold Book, Orange Book, 2013 Recommendations, and other sources. As of Friday March 29, 2024, the site contains 2,083 entries.

Mass spectrometry terms

IUPAC Recommendations 2013 Index
Complete index of mass spectrometry terms
Search the Wiki

Links