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Determination of 21 Organochlorine Pesticides in Tree Leaves Using Solid-phase Extraction Clean-up Cartridges by M. Barriada-Pereira; M.J. González-Castro; S. Muniategui-Lorenzo; P. López-Mahía; D. Prada-Rodríguez; E. Fernández-Fernández is a Chemistry article available to read on EtoBox.
What is Determination of 21 Organochlorine Pesticides in Tree Leaves Using Solid-phase Extraction Clean-up Cartridges about?
A method to determine 21 organochlorine pesticides (OCPs) in tree leaves [chestnut (Castanea sativa), hazel (Corylus avellana), oak (Quercus robur) and walnut tree (Juglans regia)] based on microwave-assisted extraction (MAE) followed by solid-phase extraction (SPE) clean-up is described. After extraction with hexane:acetone (50:50), four different sorbents (Florisil ® , tandem Florisil ® + alumina, silica and ENVI TM -Carb) were assayed for the clean-up step. Pesticides were eluted with 5 mL of hexane:ethyl acetate (80:20) and determined by gas chromatography and electron capture detection (GC-ECD). Carbon was the sorbent, which provided colourless eluates and chromatograms with less interferent compounds. Analytical recoveries obtained were ca. 100% for all the studied pesticides with this sorbent.
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It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- M. Barriada-Pereira; M.J. González-Castro; S. Muniategui-Lorenzo; P. López-Mahía; D. Prada-Rodríguez; E. Fernández-Fernández
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)
- Published
- 2004
- Language
- EN
- Field
- Chemistry (Physical Sciences)