Retention of 4-cyanophenyl herbicides on water-insoluble β-cyclodextrin support

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The retention of eight cyanophenyl herbicides on water-insoluble β -cyclodextrin polymer beads (BCDP) was determined by thin-layer chromatography using BCDP as stationary phase. The effects of pH, salt concentration in the aqueous eluent systems and the various physico-chemical parameters of herbicides on the herbicide-BCDP interaction were calculated by using principal component analysis. The pH of the eluent exerted a higher influence than the salt concentration on the retention of herbicides. The hydrophobicity and steric characteristics of solutes had the highest impact on their retention behaviour. Calculations revealed that BCDP showed a mixed retention mechanism and hydrophobic and hydrophilic forces in addition to steric parameters are involved in the interaction.

Original languageEnglish
Pages (from-to)295-302
Number of pages8
JournalJournal of Chromatography A
Issue number2
Publication statusPublished - Nov 18 1994


ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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