Use of alumina support for the separation of ethoxylated oligomer surfactants according to the length of the ethyleneoxide chain

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5 Citations (Scopus)

Abstract

The theoretical plate number, capacity factor, peak assymetry and separation factor of an alumina high-performance liquid Chromatographic column were determined using nonylphenyl ethylene oxide oligomers as solutes and eluents containing n-hexane, dichloro-methane, dioxane, tetrahydrofuran, chloroform and ethyl acetate. The relationship between the Chromatographic characteristics and physicochemical parameters of the stronger component in the eluent was calculated by multivariate mathematical-statistical methods. It has been established that each solvent influences differently the Chromatographic characteristics. The best separation was achieved by using n-hexane dichloro-methane eluent. Calculation proved that the dielectric constant, dipole moment and the bulkiness of the solvent molecule have the highest impact on the separation capacity of the alumina column.

Original languageEnglish
Pages (from-to)321-340
Number of pages20
JournalAnalytical Letters
Volume29
Issue number2
Publication statusPublished - 1996

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Aluminum Oxide
Methylene Chloride
Oligomers
Surface-Active Agents
Surface active agents
Alumina
Hexane
Ethylene Oxide
Methane
Chloroform
Dipole moment
Chlorine compounds
Statistical methods
Ethylene
Permittivity
Molecules
Oxides
Liquids
n-hexane
ethyl acetate

Keywords

  • Alumina HPLC column
  • Nonylphenyl ethylene oxide oligomers
  • Separation parameters

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Analytical Chemistry

Cite this

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abstract = "The theoretical plate number, capacity factor, peak assymetry and separation factor of an alumina high-performance liquid Chromatographic column were determined using nonylphenyl ethylene oxide oligomers as solutes and eluents containing n-hexane, dichloro-methane, dioxane, tetrahydrofuran, chloroform and ethyl acetate. The relationship between the Chromatographic characteristics and physicochemical parameters of the stronger component in the eluent was calculated by multivariate mathematical-statistical methods. It has been established that each solvent influences differently the Chromatographic characteristics. The best separation was achieved by using n-hexane dichloro-methane eluent. Calculation proved that the dielectric constant, dipole moment and the bulkiness of the solvent molecule have the highest impact on the separation capacity of the alumina column.",
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T1 - Use of alumina support for the separation of ethoxylated oligomer surfactants according to the length of the ethyleneoxide chain

AU - Forgács, E.

AU - Cserháti, T.

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N2 - The theoretical plate number, capacity factor, peak assymetry and separation factor of an alumina high-performance liquid Chromatographic column were determined using nonylphenyl ethylene oxide oligomers as solutes and eluents containing n-hexane, dichloro-methane, dioxane, tetrahydrofuran, chloroform and ethyl acetate. The relationship between the Chromatographic characteristics and physicochemical parameters of the stronger component in the eluent was calculated by multivariate mathematical-statistical methods. It has been established that each solvent influences differently the Chromatographic characteristics. The best separation was achieved by using n-hexane dichloro-methane eluent. Calculation proved that the dielectric constant, dipole moment and the bulkiness of the solvent molecule have the highest impact on the separation capacity of the alumina column.

AB - The theoretical plate number, capacity factor, peak assymetry and separation factor of an alumina high-performance liquid Chromatographic column were determined using nonylphenyl ethylene oxide oligomers as solutes and eluents containing n-hexane, dichloro-methane, dioxane, tetrahydrofuran, chloroform and ethyl acetate. The relationship between the Chromatographic characteristics and physicochemical parameters of the stronger component in the eluent was calculated by multivariate mathematical-statistical methods. It has been established that each solvent influences differently the Chromatographic characteristics. The best separation was achieved by using n-hexane dichloro-methane eluent. Calculation proved that the dielectric constant, dipole moment and the bulkiness of the solvent molecule have the highest impact on the separation capacity of the alumina column.

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KW - Separation parameters

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