Influence of organic modifiers on the retention characteristics of graphitized carbon column

Marieta Balcan, T. Cserháti, E. Forgács

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The retention time of α-(1,1,3,3,-tetramethylbutyl)phenyl ethylene oxide oligomer surfactants was determined on a porous graphitized carbon column (PGC) in eluents containing acetonitrile, methanol, ethanol, 2-propanol, tetrahydrofuran, dioxane and 2-ethoxyethanol as organic modifier. Linear relationships were calculated between the logarithm of the capacity factor and the concentration of organic modifier in the eluent. Ethylene oxide oligomers were well separated on the PGC column in acetonitrile-water eluent mixtures. Oligomers were not separated in eluents containing 2-propanol, tetrahydrofuran, dioxane and 2-ethoxyethanol as organic modifier. This result was explained by the supposition that the bulky organic modifiers occupy the active adsorption centers on the PGC surface decreasing in this manner the separation efficiency of the support.

Original languageEnglish
Pages (from-to)883-893
Number of pages11
JournalAnalytical Letters
Volume30
Issue number4
Publication statusPublished - 1997

Fingerprint

Oligomers
Ethylene Oxide
Carbon
2-Propanol
Propanol
Acetonitrile
Ethylene
Oxides
Surface-Active Agents
Adsorption
Methanol
Surface active agents
Ethanol
Water
tetrahydrofuran
acetonitrile
2-ethoxyethanol
1,4-dioxane

Keywords

  • Nonionic surfactants
  • Organic modifiers
  • Porous graphitized carbon column

ASJC Scopus subject areas

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

Cite this

Influence of organic modifiers on the retention characteristics of graphitized carbon column. / Balcan, Marieta; Cserháti, T.; Forgács, E.

In: Analytical Letters, Vol. 30, No. 4, 1997, p. 883-893.

Research output: Contribution to journalArticle

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