NDLI: An SPME–GC–MS Method for Determination of Organochlorine Pesticide Residues in Medicinal Plant Infusions

Content Provider	Springer Nature Link
Author	Rodrigues, M. V. N. Reyes, F. G. R. Rehder, V. L. G. Rath, S.
Copyright Year	2005
Abstract	A simple method, direct-immersion sampling by solid-phase microextraction and gas chromatography–mass spectrometry (DI-SPME–GC–MS), has been developed for determination of organochlorine pesticides (OCP) in plant infusions. The optimum conditions for SPME with a 100-μm PDMS-coated fiber were established by using a central composite design. The extraction time and sample temperature established were 60 min and 50 °C, respectively. The method was validated and used to determine hexachlorobenzene, lindane, 4,4’-DDE, aldrin, dieldrin, endrin, heptachlor, heptachlor epoxide, and 4,4’-DDT in infusions of Mikania laevigata and Maytenus ilicifolia. Limits for quantitation for the OCP were between 0.2 and 2.0 ng g−1 except for lindane, for which the LOQ was higher (12 ng g−1), because of its low affinity for the PDMS fiber. Recovery was in the range 90 to 108% and the intra-assay precision was below 17%. Transfer of the OCP from the plant to the infusion was in the range 0.34 to 3.4% and was correlated with the solubility of each compound in water.
Starting Page	291
Ending Page	297
Page Count	7
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	61
Issue Number	5-6
e-ISSN	16121112
Language	English
Publisher	Vieweg Verlag
Publisher Date	2005-02-25
Publisher Place	Wiesbaden
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gas chromatography–mass spectrometry Solid-phase microextraction Organochlorine pesticides Medicinal plants Analytical Chemistry Organic Chemistry Pharmacy Biochemistry Plant Sciences Measurement Science, Instrumentation
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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