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Action of Molecular Kinetic Energy on a Gas-solid Chromatography
Zhang Da-Li1; Ke Jia-Jun2; Lu Li-Zhu2; Zhang, DL
AbstractThe migration velocity, the migratory activation energy and the action of molecular motion on migration were researched for five alkanes in the gas-solid chromatography of N(2)/GDX-101 system. Maxwell distribution of energy which originally shows the molecule fraction of molecular translation energy exceeding E, was used for expressing the time fraction of the translation energy exceeding E. The kinetic energy of rotation and vibration was expressed by the times of kT/2 in the light of the principle of equiparation of energy, to modify the ideal equation. The migratory activation energy (E) which is calculated with the rate equation, could well explain the migration velocity. The kinetic energy of rotation and vibration observably influences E. These properties were also authenticated with the estimate of statistical thermodynamics. The calculation showed that E was obviously smaller than the desorption enthalpy (Delta H(Desorption)). The solute migration might not reach the state of desorption. The solute driven by mobile phase should mainly slip under the state of adsorption.
KeywordMolecular Ehermoclynamic Movement Migratory Activation Energy Maxwell Distribution Of Energy Principle Of Equiparation Of Energy Gas-solid Chromatography Slip Mechanism
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000265665700028
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, DL
Affiliation1.Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang Da-Li,Ke Jia-Jun,Lu Li-Zhu,et al. Action of Molecular Kinetic Energy on a Gas-solid Chromatography[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2009,30(4):777-780.
APA Zhang Da-Li,Ke Jia-Jun,Lu Li-Zhu,&Zhang, DL.(2009).Action of Molecular Kinetic Energy on a Gas-solid Chromatography.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,30(4),777-780.
MLA Zhang Da-Li,et al."Action of Molecular Kinetic Energy on a Gas-solid Chromatography".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 30.4(2009):777-780.
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