نوع مقاله : مقاله علمی پژوهشی
نویسندگان
دانشکده شیمی، دانشگاه دامغان، دامغان، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
A solid phase microextraction method coupled with ion mobility spectrometry (IMS) was employed as a simple and rapid approach for the determination of the hexaflumuron insecticide. In this method, nickel ferrite magnetic nanoparticles were used as adsorbent and dichloromethane was used as desorption solvent. In this method, after the end of the extraction steps and centrifugation, the desorption solvent containing the analyte was injected into the IMS instrument for analysis. The effects of various parameters including pH, type and volume of buffer, type and volume of desorption solvent, amount of adsorbent, and extraction time on this process were investigated. Under optimized conditions, the calibration curve is linear in the range of 1-150 ng mL-1 (R2=0.9998), and detection limit of the method was obtained 0.3 ng mL-1. The relative standard deviation (RSD) values (n=10) for concentrations of 10 and 100 ng mL-1 were found to be 1.4% and 3.4%, respectively. This method was applied as a suitable approach for the measurement of hexaflumuron in water, soil, tomato, fruit juice, and pistachio samples.
کلیدواژهها [English]
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