Reversed-phase thin-layer and gas chromatographic retention behaviour of triphenylmethane derivatives

Eva János, Gyula Oros

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4 Citations (Scopus)


Reversed-phase thin-layer chromatographic (RP-TLC) RM values and Kováts retention indices (I) were determined for 26 triphenylmethane derivatives and their analogues (TMDs). The relationship between RM values and organic phase concentration in the eluent was investigated. A non-linear function having a minimum extreme value at about 60% acetone concentration was obtained. This phenomenon is related to the dual retention mechanism observed in reversed-phase high-performance liquid chromatography. The relationship between RM values and gas chromatographic retention indices was also studied. No significant linear relationship was obtained. The poor correlation indicates that gas chromatographic retention indices cannot be used for characterizing the lipophilicity of the TMDs, and RP-TLC is suggested for this purpose.

Original languageEnglish
Pages (from-to)217-222
Number of pages6
JournalJournal of Chromatography A
Issue numberC
Publication statusPublished - Nov 9 1990


ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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