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The rule parameters in liquid adsorption chromatography of polymer homologous series and their determination

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Title: The rule parameters in liquid adsorption chromatography of polymer homologous series and their determination
Authors: Trathnigg, Bernd1 trathnig@kfunigraz.ac.at, Jamelnik, Otto1, Skvortsov, Alexander2
Source: Journal of Chromatography A. Sep2006, Vol. 1128 Issue 1/2, p39-44. 6p.
Subjects: Surface chemistry, Liquid chromatography, Ethylene glycol, Oligomers
Abstract: Abstract: The separation of polymer homologous series is governed by two rule parameters: the interaction parameter c of the repeat unit and the sorbent surface S (relation of pore volume to pore diameter). The interaction parameter is independent on column dimensions and pore diameter. In a plot of elution volumes V n versus the difference ΔV = V n − V n−1 in elution volumes of consecutive oligomers, straight lines are obtained, the intercept of which yields the accessible volume. Using the accessible volume as the hold-up volume in the calculation of the retention factor k, a strictly linear dependence of ln k versus the number of the repeat units n is observed (Martin''s plot). The interaction parameter c can be determined experimentally by three different approaches: from the slope in a plot of V versus ΔV, from the slope in Martin''s plot (ln k versus n), and from the intercept in a plot of ln(ΔV) versus n. The pore surface is obtained from the intercept in Martin''s plot (ln k versus n) or the intercept in a plot of ln(ΔV) versus n. The results obtained by the different approaches agree very well. The theoretical predictions are verified by comparison with the experimental data obtained on columns with different pore diameter and pore volume and thus, different pore surface at conditions corresponding to the same interaction parameter. [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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 22220413
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: The rule parameters in liquid adsorption chromatography of polymer homologous series and their determination
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  Data: <searchLink fieldCode="AR" term="%22Trathnigg%2C+Bernd%22">Trathnigg, Bernd</searchLink><relatesTo>1</relatesTo><i> trathnig@kfunigraz.ac.at</i><br /><searchLink fieldCode="AR" term="%22Jamelnik%2C+Otto%22">Jamelnik, Otto</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Skvortsov%2C+Alexander%22">Skvortsov, Alexander</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Chromatography+A%22">Journal of Chromatography A</searchLink>. Sep2006, Vol. 1128 Issue 1/2, p39-44. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+chromatography%22">Liquid chromatography</searchLink><br /><searchLink fieldCode="DE" term="%22Ethylene+glycol%22">Ethylene glycol</searchLink><br /><searchLink fieldCode="DE" term="%22Oligomers%22">Oligomers</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: The separation of polymer homologous series is governed by two rule parameters: the interaction parameter c of the repeat unit and the sorbent surface S (relation of pore volume to pore diameter). The interaction parameter is independent on column dimensions and pore diameter. In a plot of elution volumes V n versus the difference ΔV = V n − V n−1 in elution volumes of consecutive oligomers, straight lines are obtained, the intercept of which yields the accessible volume. Using the accessible volume as the hold-up volume in the calculation of the retention factor k, a strictly linear dependence of ln k versus the number of the repeat units n is observed (Martin''s plot). The interaction parameter c can be determined experimentally by three different approaches: from the slope in a plot of V versus ΔV, from the slope in Martin''s plot (ln k versus n), and from the intercept in a plot of ln(ΔV) versus n. The pore surface is obtained from the intercept in Martin''s plot (ln k versus n) or the intercept in a plot of ln(ΔV) versus n. The results obtained by the different approaches agree very well. The theoretical predictions are verified by comparison with the experimental data obtained on columns with different pore diameter and pore volume and thus, different pore surface at conditions corresponding to the same interaction parameter. [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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=22220413
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.chroma.2006.06.027
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 6
        StartPage: 39
    Subjects:
      – SubjectFull: Surface chemistry
        Type: general
      – SubjectFull: Liquid chromatography
        Type: general
      – SubjectFull: Ethylene glycol
        Type: general
      – SubjectFull: Oligomers
        Type: general
    Titles:
      – TitleFull: The rule parameters in liquid adsorption chromatography of polymer homologous series and their determination
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            NameFull: Trathnigg, Bernd
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            NameFull: Jamelnik, Otto
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            NameFull: Skvortsov, Alexander
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            – D: 22
              M: 09
              Text: Sep2006
              Type: published
              Y: 2006
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              Value: 1128
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              Value: 1/2
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            – TitleFull: Journal of Chromatography A
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