SBSE-GC-ECD/FPD in the analysis of pesticide residues in Passiflora alata Dryander herbal teas

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Authors

  • Carlo Bicchi
  • Chiara Cordero
  • Cristina Iori
  • Patrizia Rubiolo
  • Pat Sandra
  • Janete H. Yariwake
  • Vania G. Zuin

Stir bar sorptive extraction (SBSE) in combination with GC-ECD/FPD analysis is here applied to the determination of the residues of 11 pesticides (hexachlorobenzene, lindane, chlorothalonil, parathion methyl, parathion ethyl, fenitrothion, malathion, dieldrin, α- and β-endosulfan, and tetradifon) in herbal teas prepared with Passiflora alata Dryander spiked leaves. The method was optimized using spiked herbal teas in a range from 0.05 to 1 pg/μL for organochlorine pesticides and from 0.15 to 3 pg/μL for organophosphorus pesticides. The method is reproducible and repeatable with recoveries calculated from herbal teas prepared with spiked plant material versus spiked herbal teas, varying from about 30% for tetradifon to about 90% for parathion methyl and malathion. The limits of quantitation (LOQs) ranged from 0.017 pg/μL for lindane to 0.117 pg/μL for malathion.

Original languageEnglish
JournalJournal of Agricultural and Food Chemistry
Volume51
Issue number1
Pages (from-to)27-33
Number of pages7
ISSN0021-8561
DOIs
Publication statusPublished - 01.01.2003
Externally publishedYes

    Research areas

  • Herbal teas, Medicinal plants, Passiflora alata Dryander, Pesticide residues, Sample preparation, Stir bar sorptive extraction (SBSE)
  • Chemistry

DOI

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