in order to characterize the morphological properties of the prepared nanocomposite the scanning electron micrographs were obtained by a hitachi S4160 microscope (tokyo, japan). FTIR spectra were recorded by a tensor 27 FTIR spectrometer from brucker (ettlingen, germany).
sonications were carried out with a bandelin sonorex super ultrasonic bath (berlin, germany) for stirring and heating the samples during the SPME process, a jenway model 1000 hot plate-stirrer obtained from biby scientific (manchester, UK) was used.