Metastable ion: Difference between revisions
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An ion that is formed with internal energy higher than the threshold for dissociation but with a lifetime great enough to allow it to exit the [[ion source]] and enter the [[mass spectrometer]] where it dissociates before detection. | An ion that is formed with internal energy higher than the threshold for dissociation but with a lifetime great enough to allow it to exit the [[ion source]] and enter the [[mass spectrometer]] where it dissociates before detection. | ||
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An ion formed with internal energy higher than the threshold for dissociation but with a lifetime great enough to allow it to exit the ion source and enter the mass analyzer where it dissociates before detection. | |||
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#[[Gold Book]] | |||
#[[Orange Book]] | |||
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Revision as of 23:33, 5 June 2010
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Orange Book
| ORANGE BOOK DEFINITION
IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979 (see also Orange Book 2023) |
| Metastable ion |
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An ion which is formed with sufficient excitation to dissociate spontaneously during its flight from the ion source to the detector. |
| IUPAC 1997 Orange Book Chapter 12 |
| Index of Orange Book Terms |
Gold Book
| GOLD BOOK DEFINITION
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). |
| Metastable ion |
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http://goldbook.iupac.org/M03874.html An ion which is formed with sufficient excitation to dissociate spontaneously during its flight from the ion source to the detector. Source: PAC, 1991, 63, 1541 (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1549 |
| IUPAC Gold Book |
| Index of Gold Book Terms |
| ASMS TERMS AND DEFINITIONS POSTER ENTRY |
| Metastable ion |
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Ion that fragments slowly after emergence from the ion source but before it reaches the detector; in sector instruments, metastable ions give rise to signals which appear at unique m/z values related to the parent and product ion masses. |
| ASMS Terms and Definitions Poster |
See also
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See additional comments on the Metastable ion discussion page (archive of discussion between 2004 and 2006) |
