NDLI: Matrix Solid-Phase Dispersion Micro-Extraction of Pesticides from Single Insects with Subsequent GC

Content Provider	Springer Nature Link
Author	Kristenson, E.M. Shahmiri, S. Slooten, C.J. Vreuls, R.J.J. Brinkman, U.A.Th.
Copyright Year	2004
Abstract	A simple multiresidue method based on matrix solid-phase dispersion (MSPD) micro-extraction was studied to determine various organophosphorus (OPPs) and pyrethroid pesticides in single insects. Optimisation of the relevant parameters showed that, in the case of OPPs and permethrin, extraction from 40 mg of isopod (Porcellio scaber) and the use of C8-bonded silica and 100 μL of ethyl acetate were the best conditions, while silica and 3.5 mL of n-hexane were optimal for the less polar pyrethroids. Subsequently, 1 μL (ethyl acetate) or 20 μL (n-hexane) of the extracts were analysed by GC–MS without any further clean-up. The limits of detection (LODs), in the SIM mode, were 5–80 ng g−1 for most OPPs and trans-permethrin (cis-permethrin 0.3 ng g−1) when using the C8-bonded silica/ethyl acetate procedure, and 5–35 ng g−1 for the pyrethroids when using the silica/n-hexane procedure. The recoveries of the OPPs and pyrethroids from the isopods were 52–94%. The practicality of the proposed method was studied for pesticides in isopods which had been fed polluted leaves.
Starting Page	315
Ending Page	320
Page Count	6
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	59
Issue Number	5-6
e-ISSN	16121112
Language	English
Publisher	Vieweg Verlag
Publisher Date	2004-02-06
Publisher Place	Wiesbaden
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gas chromatography-mass spectrometry Extraction Matrix solid-phase dispression Organophosphorus pesticides Pyrethroids
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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