Marzieh Babashpour-Asl - Department of Horticultural Science, Maragheh Branch, Islamic Azad University, Maragheh, Iran
Marzieh Piryaei - Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran

The study investigated the reliability of polystyrene/MgAl-layered double hydroxide as a ۳D newnanostructure solid phase microextraction fiber coating for extraction and determination the essentialoil of Grammosciadium platycarpum Boiss. & Hausskn. growing wild in Maragheh region, EastAzerbaijan province, Iran. The Headspace solid phase microextraction coupled with gaschromatography/mass spectrometric method was applied for analyzing of volatile oils. Within thestudy elaborated, some important experimental parameters affecting the extraction efficiency ofessential oils were studied in detail and the optimal conditions are as follows: Desorptiontemperature, ۲۶۰° C; Desorption time, ۱۵۰ sec.; sample weight, ۱.۵ g; extraction temperature, ۸۰ °C; extraction time, ۲۰ min. Although to date, SPME devices have been used mainly in laboratoryapplications, recent research has been directed towards remote monitoring, particularly for clinical,field environmental and industrial hygiene applications.

Volatile Oil, Microextraction, LDH, Nanomaterial, Grammosciadium DC., GC/MS.