Packing fraction
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DRAFT DEFINITION |
Packing fraction |
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Obsolete Mass defect of an atom divided by its mass number and expressed as parts per 10,000. |
Related Term(s): mass defect |
Reference(s):
F. W. Aston, "Atoms and Their Packing Fractions" Nature 120, 956 (1927), http://dx.doi.org/10.1038/120956a0 |
This is an unofficial draft definition presented for information and comment. |
References
- Aston, F.W.: Atoms and their Packing Fractions. Nature. 120, 956-959 (1927); http://dx.doi.org/10.1038/120956a0
- "The most convenient and informative expression for the divergences of an atom from the whole number rule is the actual divergence divided by its mass number. This is the mean gain or loss per proton when the nuclear packing is changed from that of oxygen to that of the atom in question. It will be called the packing fraction of the atom and expressed in parts per 10,000."
- Mattauch, J.: Nuclear Binding Energies. Science. 121, 745-750 (1955); http://dx.doi.org/10.1126/science.121.3152.745
- "In 1927 Aston published his measurements of the deviations of the nuclidic weights from integers in the form of a packing fraction curve that reflects the variation of the binding energy per nucleon with the number A of nucleons in the various nuclides."
- Budzikiewicz, H., Grigsby, R.D.: Mass spectrometry and isotopes: A century of research and discussion. Mass Spectrom. Rev. 25, 146-157 (2005); http://dx.doi.org/10.1002/mas.20061
- Bauer, S.H.: Mass spectrometry in the Mid-1930's: Were chemists intrigued? J. Am. Soc. Mass Spectrom. 12, 975-988 (2001)); http://dx.doi.org/10.1016/S1044-0305(01)00286-0
- Audi, G.: The history of nuclidic masses and of their evaluation. Int. J. Mass Spectrom. 251, 85-94 (2006); http://dx.doi.org/10.1016/j.ijms.2006.01.048
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
Links
- Land, A. Neutrons in the Nucleus. I. Phys. Rev. 43, 620-623 (1933).
- http://dx.doi.org/10.1103/PhysRev.43.620
- Carlson (1960); High Resolution Mass Spectrometry. Interpretation of Spectra of Petroleum Fractions
- http://dx.doi.org/10.1021/ac60167a032
- Kendrick (1963); A Mass Scale Based on CH2= 14.0000 for High Resolution Mass Spectrometry of Organic Compounds.
- http://dx.doi.org/10.1021/ac60206a048
- Hughey (2001); Kendrick Mass Defect Spectrum:? A Compact Visual Analysis for Ultrahigh-Resolution Broadband Mass Spectra
- http://dx.doi.org/10.1021/ac010560w
- Zhang (2003); A software filter to remove interference ions from drug metabolites in accurate mass liquid chromatography/mass spectrometric analyses
- http://dx.doi.org/10.1002/jms.521
- Hall, M.P., Ashrafi, S., Obegi, I., Petesch, R., Peterson, J.N., Schneider, L.V. Mass defect tags for biomolecular mass spectrometry. J. Mass Spectrom. 38, 809-816 (2003).
- http://dx.doi.org/10.1002/jms.493
- Zhang (2009); Mass defect filter technique and its applications to drug metabolite identification by high-resolution mass spectrometry
- http://dx.doi.org/10.1002/jms.1610
- Sleno (2012); The use of mass defect in modern mass spectrometry
- http://dx.doi.org/10.1002/jms.2953
- Pourshahian (2017); Mass Defect from Nuclear Physics to Mass Spectral Analysis
- http://dx.doi.org/10.1007/s13361-017-1741-9