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Separation of very hydrophobic analytes by micellar electrokinetic chromatography: IV. Modeling of the effective electrophoretic mobility from carbon number equivalents and octanol–water partition coefficients

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Title: Separation of very hydrophobic analytes by micellar electrokinetic chromatography: IV. Modeling of the effective electrophoretic mobility from carbon number equivalents and octanol–water partition coefficients
Authors: Huhn, Carolin1, Pyell, Ute pyell@chemie.uni-marburg.de
Source: Journal of Chromatography A. Jul2008, Vol. 1198-1199, p208-214. 7p.
Subjects: Hydrophobic surfaces, Electrophoretic deposition, Chromatographic analysis, Analytical chemistry
Abstract: Abstract: It is investigated whether those relationships derived within an optimization scheme developed previously to optimize separations in micellar electrokinetic chromatography can be used to model effective electrophoretic mobilities of analytes strongly differing in their properties (polarity and type of interaction with the pseudostationary phase). The modeling is based on two parameter sets: (i) carbon number equivalents or octanol–water partition coefficients as analyte descriptors and (ii) four coefficients describing properties of the separation electrolyte (based on retention data for a homologous series of alkyl phenyl ketones used as reference analytes). The applicability of the proposed model is validated comparing experimental and calculated effective electrophoretic mobilities. The results demonstrate that the model can effectively be used to predict effective electrophoretic mobilities of neutral analytes from the determined carbon number equivalents or from octanol–water partition coefficients provided that the solvation parameters of the analytes of interest are similar to those of the reference analytes. [Copyright &y& Elsevier]
Copyright of Journal of Chromatography A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 32742273
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Separation of very hydrophobic analytes by micellar electrokinetic chromatography: IV. Modeling of the effective electrophoretic mobility from carbon number equivalents and octanol–water partition coefficients
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  Data: <searchLink fieldCode="AR" term="%22Huhn%2C+Carolin%22">Huhn, Carolin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pyell%2C+Ute%22">Pyell, Ute</searchLink><i> pyell@chemie.uni-marburg.de</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Chromatography+A%22">Journal of Chromatography A</searchLink>. Jul2008, Vol. 1198-1199, p208-214. 7p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydrophobic+surfaces%22">Hydrophobic surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Electrophoretic+deposition%22">Electrophoretic deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Chromatographic+analysis%22">Chromatographic analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+chemistry%22">Analytical chemistry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: It is investigated whether those relationships derived within an optimization scheme developed previously to optimize separations in micellar electrokinetic chromatography can be used to model effective electrophoretic mobilities of analytes strongly differing in their properties (polarity and type of interaction with the pseudostationary phase). The modeling is based on two parameter sets: (i) carbon number equivalents or octanol–water partition coefficients as analyte descriptors and (ii) four coefficients describing properties of the separation electrolyte (based on retention data for a homologous series of alkyl phenyl ketones used as reference analytes). The applicability of the proposed model is validated comparing experimental and calculated effective electrophoretic mobilities. The results demonstrate that the model can effectively be used to predict effective electrophoretic mobilities of neutral analytes from the determined carbon number equivalents or from octanol–water partition coefficients provided that the solvation parameters of the analytes of interest are similar to those of the reference analytes. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Chromatography A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.chroma.2008.04.061
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 208
    Subjects:
      – SubjectFull: Hydrophobic surfaces
        Type: general
      – SubjectFull: Electrophoretic deposition
        Type: general
      – SubjectFull: Chromatographic analysis
        Type: general
      – SubjectFull: Analytical chemistry
        Type: general
    Titles:
      – TitleFull: Separation of very hydrophobic analytes by micellar electrokinetic chromatography: IV. Modeling of the effective electrophoretic mobility from carbon number equivalents and octanol–water partition coefficients
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            NameFull: Huhn, Carolin
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            NameFull: Pyell, Ute
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            – D: 11
              M: 07
              Text: Jul2008
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              Y: 2008
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              Value: 1198-1199
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            – TitleFull: Journal of Chromatography A
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