Resolution: 10 percent valley definition: Difference between revisions
From Mass Spec Terms
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|def=Value of (''[[m/z]]'')/Δ(m/z) measured for two peaks of equal height in a mass spectrum at ''m/z'' and ''m/z'' Δ(''m/z'') that are separated by a valley which at its lowest point is 10 % of the height of either peak. For peaks of similar height separated by a valley, let the height of the valley at its lowest point be 10 % of the lower peak. Then the resolution (10 % valley definition) is (''m/z'')/Δ(''m/z'') and should be given for a number of values of ''m/z''. | |||
|rel=[[resolution: peak width definition]] | |||
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Let two peaks of equal height in a [[Mass Spectrum|mass spectrum]] at masses m and m - Δm be separated by a valley which at its lowest point is just 10% of the height of either peak. For similar peaks at a mass exceeding m , let the height of the valley at its lowest point be more (by any amount) than 10% of either peak. Then the resolution (10% valley definition) is m / Δm. The ratio m /Δm should be given for a number of values of m. | Let two peaks of equal height in a [[Mass Spectrum|mass spectrum]] at masses m and m - Δm be separated by a valley which at its lowest point is just 10% of the height of either peak. For similar peaks at a mass exceeding m , let the height of the valley at its lowest point be more (by any amount) than 10% of either peak. Then the resolution (10% valley definition) is m / Δm. The ratio m /Δm should be given for a number of values of m. | ||
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[[Category:M/z Separation]] | [[Category:M/z Separation]] | ||
[[Category:General]] | [[Category:General]] | ||
Revision as of 12:01, 8 January 2014
| IUPAC RECOMMENDATIONS 2013 |
| Resolution: 10 percent valley definition |
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| Value of (m/z)/Δ(m/z) measured for two peaks of equal height in a mass spectrum at m/z and m/z Δ(m/z) that are separated by a valley which at its lowest point is 10 % of the height of either peak. For peaks of similar height separated by a valley, let the height of the valley at its lowest point be 10 % of the lower peak. Then the resolution (10 % valley definition) is (m/z)/Δ(m/z) and should be given for a number of values of m/z. |
| Related Term(s): resolution: peak width definition |
| Reference(s): |
| From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013. |
Orange Book
| ORANGE BOOK DEFINITION
IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979 (see also Orange Book 2023) |
| Resolution: 10 percent valley definition |
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|
Let two peaks of equal height in a mass spectrum at masses m and m - Δm be separated by a valley which at its lowest point is just 10% of the height of either peak. For similar peaks at a mass exceeding m , let the height of the valley at its lowest point be more (by any amount) than 10% of either peak. Then the resolution (10% valley definition) is m / Δm. The ratio m /Δm should be given for a number of values of m. |
| IUPAC 1997 Orange Book Chapter 12 |
| Index of Orange Book Terms |
