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  • Nuclear Structure  (5)
  • Solvating gas chromatography  (3)
  • American Physical Society (APS)  (5)
  • Springer  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Polybutadiene-coated zirconia packing materials in solvating gas chromatography using carbon dioxide as mobile phase (1999)
    Springer
    Chromatographia 49 (1999), S. 431-435 
    Details
    ISSN: 1612-1112
    Keywords: Gas chromatography ; Supercritical fluid chromatography ; Solvating gas chromatography ; Polybutadiene coated zirconia ; CO2 mobile phase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary In this paper, practical considerations of column efficiency, separation speed, thermal stability, and column polarity of capillary columns packed with polybutadiene-coated zirconia were investigated under solvating gas chromatography (SGC) conditions using carbon dioxide as mobile phase. When compared with results obtained from conventional porous octadecyl obtained from conventional porous octadecyl bonded silica (ODS) particles, PBD-zirconia particles produced greater change in mobile phase linear velocity with pressure than conventional ODS particles under the same conditions. The maximum plate number per second (Nt) obtained with a 30 cm PBD-zirconia column was approximately 1.5 times higher than that obtained with an ODS column at 100 °C. Therefore, the PBD-zirconia phase is more suitable for fast separations than conventional ODS particles in SGC. Maximum plate numbers per meter of 76,900 and 63,300 were obtained using a 57 cm×250 μm i.d. fused silica capillary column packed with 3 μm PBD-zirconia at 50 °C and 100 °C, respectively. The PBD-zirconia phase was stable at temperatures up to 320 °C under SGC conditions using carbon dioxide as mobile phase. Polarizable aromatic compounds and low molecular weight ketones and aldehydes were eluted with symmetrical peaks from a 10 cm column packed with 3 μm PBD-zirconia. Zirconia phases with greater inertness are required for the analysis of more polar compounds by SGC.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467619
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Comparison of packed capillary solvating gas chromatography with supercritical fluid chromatography using carbon dioxide as mobile phase (1998)
    Springer
    Chromatographia 47 (1998), S. 673-677 
    Details
    ISSN: 1612-1112
    Keywords: Solvating gas chromatography ; Supercritical fluid chromatography ; Packed capillary columns ; Solvating power
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The efficiency (plate number per unit time) and elution power (range ofn-alkanes) of packed capillary SFC and SGC using CO2 as the mobile phase were compared. A higher plate number per unit time was obtained in SGC than in SFC using the same column under the same applied conditions. SGC is more suitable for fast separations than SFC. The solvating ability of the mobile phase, at the column exit end, decreased remarkably after the restrictor was removed. However, the elution molecular weight range in SGC can be greatly extended by increasing the column temperature.n-Alkanes with carbon numbers as high as 80 were separated under SGC conditions using a 35 cm ×250 μm i.d. column packed with 10 μm polymer-encapsulated silica particles at 200 atm, with a temperature program of 100–380°C at 10°C min−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467452
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  • 3
    Electronic Resource
    Electronic Resource
    Peak capacity in packed capillary column solvating gas chromatography (1999)
    Springer
    Chromatographia 49 (1999), S. 333-337 
    Details
    ISSN: 1612-1112
    Keywords: Supercritical fluid chromatography ; Gas chromatography ; Solvating gas chromatography ; Peak capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary In this paper, a general peak capacity expression was evaluated using columns containing various packing materials under solvating gas chromatography (SGC) conditions. Differing from column efficiency, peak capacity can describe both separation capability and speed when introducing the dead time into the peak capacity expression. Various factors that influence peak capacity in SGC are described, including particle pore size, chemical surface modification, particle size, column length, temperature, and pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467566
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  • 4
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    Regularities in low-lying states of atomic nuclei with random interactions (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-05-27
    Description: Author(s): G. J. Fu, J. J. Shen, Y. M. Zhao, and A. Arima In this paper we study low-lying states of atomic nuclei with random interactions, within the framework of the nuclear shell model. The distributions of R 6 versus R 4 (where R I ≡ E I 1 + / E 2 1 + ), empirical proton-neutron interaction, and charge radius are investigated by using a two-body random ensemble. Th... [Phys. Rev. C 91, 054319] Published Tue May 19, 2015
    Keywords: Nuclear Structure
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society (APS)
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  • 5
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    Spin-aligned isoscalar pair correlation in ^{96}Cd, ^{94}Ag, and ^{92}Pd (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-04-10
    Description: Author(s): G. J. Fu, J. J. Shen, Y. M. Zhao, and A. Arima T =0 states of 96 Cd, 94 Ag, and 92 Pd are studied by using the nucleon-pair approximation and the JUN45 interaction for the p 1/2 p 3/2 f 5/2 g 9/2 shell. We focus on the approximation of isoscalar spin-aligned pairs in a single- j 1 g 9/2 shell. Configurations associated with the 2 p 1/2 and 2 p 3/2 orbits are inve... [Phys. Rev. C 87, 044312] Published Tue Apr 09, 2013
    Keywords: Nuclear Structure
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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  • 6
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    New extrapolation method for low-lying states of nuclei in the sd and the pf shells (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-04-28
    Description: Author(s): J. J. Shen, Y. M. Zhao, A. Arima, and N. Yoshinaga We study extrapolation approaches to evaluate energies of low-lying states for nuclei in the sd and pf shells, by sorting the diagonal matrix elements of the nuclear shell-model Hamiltonian. We introduce an extrapolation method with perturbation and apply our new method to predict both low-lying sta... [Phys. Rev. C 83, 044322] Published Wed Apr 27, 2011
    Keywords: Nuclear Structure
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society (APS)
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  • 7
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    New perturbation method of diagonalizing the nuclear shell model Hamiltonian (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-06-26
    Description: Author(s): J. J. Shen, Y. M. Zhao, and A. Arima We suggest a perturbation method for obtaining the lowest eigenvalues of the nuclear-shell -model Hamiltonian. We introduce a “cutoff” based on the features of the nuclear-shell-model Hamiltonian matrices. Our new method is exemplified by a few realistic nuclei. Overlaps between the wave functions o... [Phys. Rev. C 85, 064325] Published Mon Jun 25, 2012
    Keywords: Nuclear Structure
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society (APS)
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  • 8
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    Regularities of proton-neutron interactions for nuclei in the sd shell (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-04-09
    Description: Author(s): G. J. Fu, J. J. Shen, Y. M. Zhao, and A. Arima In this paper we study the proton-neutron interaction of nuclei in the s d shell by using the shell model. The isoscalar proton-neutron interactions of the shell model results are found to be consistent with those empirically extracted by the double difference of binding energies. We point out that t... [Phys. Rev. C 87, 044309] Published Mon Apr 08, 2013
    Keywords: Nuclear Structure
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society (APS)
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