عنوان
Synthesis of novel sorbent for the extraction and preconcentration of polycyclic aromatic hydrocarbons from aqueous samples
نویسنده (گان)
Hamidi khargh,Seyede eliye
چکیده مقاله
Recently, magnetic solid-phase extraction (MSPE), a new mode of SPE method, based on the use of magnetic nanoparticles (MNPs) has been developed [1,2]. In this work, the extraction of polycyclic aromatic hydrocarbons (PAHs) with an efficient synthesized nanocomposite followed by GC‒FID was presented. The sorbent was characterized by vibrating sample magnetometry (VSM), Fourier transform infrared spectroscopy (FT-IR) and transition electron microscopy (TEM, Fig. 1). The optimal extraction conditions include: sorbent amount, 35 mg; sorption time, 10 min; salt concentration, 30% w/w; type and volume of the eluent, toluene, 1 mL; elution time; 5 min. Under the optimal extraction conditions, limits of detection (LODs) and the linear dynamic ranges were achieved in the range of 0.003‒0.01 ng mL−1 and 0.01–200 ng mL−1, respectively. The absolute extraction recovery (ER%) and relative standard deviations (RSD%) were in the range of 50.4‒78.3% and 5.2‒8.5%, respectively. Finally, the applicability of the method was successfully confirmed by the extraction and determination of PAHs in the real water samples.

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