Literature DB >> 19847983

Entropy dominated high performance liquid chromatographic separations of polynuclear aromatic hydrocarbons. Temperature as a separation parameter.

J Chmielowiec1, H Sawatzky.   

Abstract

The effect of temperature variations on the thermodynamic distribution behaviour in a silica C18/aqueous acetonitrile chromatographic system of polynuclear aromatic hydrocarbons is discussed. Evaluated enthalpy and calculated entropy change values are presented. The elution sequences of some polynuclear aromatic hydrocarbons are reversed by temperature variations, which ascribed to domination by entropy effects.

Entities:  

Year:  1979        PMID： 19847983     DOI： 10.1093/chromsci/17.5.245

Source DB:  PubMed          Journal:  J Chromatogr Sci        ISSN： 0021-9665            Impact factor:   1.618


  2 in total

1.  Effect of column temperature and eluent flow rate on the high performance liquid chromatographic analysis of cyclosporin a and d.

Authors:  K A Mereish; C T Ueda
Journal:  Pharm Res       Date:  1984-11       Impact factor: 4.200

2.  Unexpected differences between planar and column liquid chromatographic retention of 1-acenaphthenol enantiomers controlled by supramolecular interactions involving β-cyclodextrin at subambient temperatures.

Authors:  Hatsuichi Ohta; Elżbieta Włodarczyk; Krzysztof Piaskowski; Aleksandra Kaleniecka; Lucyna Lewandowska; Michał J Baran; Mariusz Wojnicz; Kiyokatsu Jinno; Yoshihiro Saito; Paweł K Zarzycki
Journal:  Anal Bioanal Chem       Date:  2017-03-24       Impact factor: 4.142
  2 in total

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