Application of metal-organic frame work (MOF) as a very efficient sorbent for the separation and determination trace amount of anthracene in various real samples

In this work, a novel metal-organic frame work (MOF) as a very efficient sorbent in dispersive solid phase microextraction method is synthesized and applied for the separation/preconcentration of anthracene (An) and its determination by fluorescence spectroscopy [1-3]. The properties of the synthesized MOF were characterized by Fourier-transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD). To examine the most important parameters including amount of MOF, extraction time, concentration of the analyte and pH of the solution and their interactions in the microextraction optimization procedure, a four-factor central composite design (CCD) combined with response surface modeling (RSM) was implemented [4]. Under optimum conditions, the enrichment factor (EF), relative standard deviation (RSD) and limit of detection (LOD) of the method were found to be 40, 2.1%, and 0.57 ng mL-1, respectively. Finally, the proposed method was successfully applied for the selective determination of trace amounts of An in fruit and water samples.