Nth-generation product ion

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IUPAC RECOMMENDATIONS 2013

K. K. Murray, R. K. Boyd, M. N. Eberlin, G. J. Langley, L. Li and Y. Naito, Pure Appl. Chem., 2013, 85, 1515-1609.

Nth-generation product ion
Deprecated: granddaughter ion.

Serial product ions from dissociation or bimolecular reaction of selected precursor ions where n refers to the number of stages of dissociation or bimolecular reaction in a series of consecutive reactions that involve successive product ions.

Note 1: Given the sequential fragmentation scheme: M1+ ➞ M2+ ➞ M3+ ➞ M4+ ➞ M5+

M4+ is the precursor ion of M5+, a 1st-generation product ion of M3+, a 2nd-generation product ion of M2+, and a 3rd-generation product ion of M1+.

Related Term(s): nth-generation product ion spectrum
Reference(s):

P. Price. J. Am. Soc. Mass Spectrom. 2, 336 (1991). (http://dx.doi.org/10.1016/1044-0305(91)80025-3 )

G. Glish. J. Am. Soc. Mass Spectrom. 2, 349 (1991). (http://dx.doi.org/10.1016/1044-0305(91)80026-4 )

G. C. Thorne, K. D. Ballard, S. J. Gaskell. J. Am. Soc. Mass Spectrom. 1, 249 (1990). (http://dx.doi.org/10.1016/1044-0305(90)85042-K )

Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.


Index of Terms

 




Daughter ion and related terms

QUOTED TEXT FROM IUPAC RECOMMENDATIONS 2013
The anthropomorphic terms for ions involved in fragmentation reactions, for example, “daughter ion”, have fallen into disuse after strong sentiments against the use of the term were voiced two decades ago [1][2]. The term product ion is recommended in place of daughter ion and precursor ion in place of parent ion. The use of nth-generation product ion is recommended in place of granddaughter ion and similar terms.
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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