Optimization of headspace solid-phase microextraction conditions for the determination of organophosphorus insecticides in olive oil

Determination of organophosphorus pesticides in peanut oil by dispersive solid phase extraction gas chromatography–mass spectrometry

“…In addition, a headspace solid-phase microextraction (HS-SPME) was also carried 1570-0232/$ -see front matter © 2011 Elsevier B.V. All rights reserved. doi:10.1016/j.jchromb.2011.09.016 out with a fiber coating polydimethylsiloxane to extract 7 kinds of OPPs and their metabolites in olive oil samples [10]. Supercritical fluid extraction [28] developed as an on-line cleanup method has also been proposed as extraction and/or cleanup step.…”

Development of a solid-phase microextraction gas chromatography with microelectron-capture detection method for a multiresidue analysis of pesticides in bovine milk

“…Thus, it can be concluded that the addition of NaCl did not improve the extraction of the target analytes from milk. The negative effect of the salt addition was also highlighted in other studies dealing with pesticide extraction from other matrixes such as water and oil [25,26]. This effect could be due to the negative influence of the salt on the kinetics of the SPME process [27] as a consequence of the increment of the sample viscosity and density.…”

Sample Preparation Approaches for the Analysis of Pesticide Residues in Olives and Olive Oils

“…In GC, desorption is done quickly at high temperature and rapid gas flow rate, and in LC, a strong solvent is typically employed for rapid desorption (O'Reilly et al, 2005). Tsoutsi and Albanis (2004) studied and compared the SPME extraction capacity of four fiber coatings, polydimethylsiloxane (PDMS), polyacrylate, PDMS-divinylbenzene, and Carbowax-PDMS, in the extraction of seven organophosphorus pesticides (ethion, bromophos, bromophosmethyl, diazinon, fenthion, parathion, and fenitrothion) from olive oils. PDMS by itself showed the better extraction efficiency for the analytes.…”