Effects of analyte-matrix interactions on supercritical fluid extraction efficiencies of polycyclic aromatic hydrocarbons

You-Zung Hsieh*, An Chi Chang

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The effects of different variables for analyte-matrix interactions on supercritical fluid extraction (SFE) efficiencies of polycyclic aromatic hydrocarbons (PAHs) were investigated. The results indicated that the main factors for describing a matrix, e.g., the chemical properties of the matrix surface, surface area, and pore size, could significantly influence the analyte-matrix interactions. The polarizability of an analyte was demonstrated to be yet another significant factor for influencing analyte-matrix interactions. Either elevating the temperature or adding modifiers could also increase the SFE recoveries. The underlying mechanisms of these variables are discussed.

Original languageEnglish
Pages (from-to)41-50
Number of pages10
JournalAnalytica Chimica Acta
Volume342
Issue number1
DOIs
StatePublished - 21 Apr 1997

Keywords

  • Analyte-matrix interactions
  • PAHs
  • Supercritical fluid extraction

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