Kendrick mass defect

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Kendrick mass defect
Difference between the nominal mass and the Kendrick mass of a given ion.
Related Term(s):

Kendrick, Edward (1963). "A mass scale based on CH2 = 14.0000 for high resolution mass spectrometry of organic compounds". Anal. Chem. 35: 2146–2154.

Marshall AG, Rodgers RP (January 2004). "Petroleomics: the next grand challenge for chemical analysis". Acc. Chem. Res. 37 (1): 53–9. PMID 14730994.

S. Kim, R. W. Kramer, P. G. Hatcher. Anal. Chem. 75, 5336-5344 (2003).

This is an unofficial draft definition presented for information and comment. For current IUPAC recommended mass spectrometry terms, see the Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

Mass defect

Mass defect in mass spectrometry and nuclear physics

Mass defect (mass spectrometry)
The difference between the exact mass and the nearest integer mass
Mass defect (physics)
The difference between the mass of a composite particle and the sum of the masses of its parts


Carlson (1960); High Resolution Mass Spectrometry. Interpretation of Spectra of Petroleum Fractions
Kendrick (1963); A Mass Scale Based on CH2= 14.0000 for High Resolution Mass Spectrometry of Organic Compounds.
Hughey (2001); Kendrick Mass Defect Spectrum:? A Compact Visual Analysis for Ultrahigh-Resolution Broadband Mass Spectra
Zhang (2003); A software filter to remove interference ions from drug metabolites in accurate mass liquid chromatography/mass spectrometric analyses
Zhang (2009); Mass defect filter technique and its applications to drug metabolite identification by high-resolution mass spectrometry
Sleno (2012); The use of mass defect in modern mass spectrometry
Pourshahian (2017); Mass Defect from Nuclear Physics to Mass Spectral Analysis