چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| In this study, a magnetic iron (III) oxinate nanocomposite with high adsorption capacity and saturation magnetization was synthesized through coprecipitation in a short time and used as a sorbent in magnetic dispersive solid phase extraction of some pesticides from fruit juice and fruit samples. This step was followed by a dispersive liquid–liquid microextraction method to more enrichment of the analytes before their quantification by gas chromatography equipped with a flame ionization detector. To verify the successful synthesis of the sorbent, it was characterized using techniques including X–ray diffraction, Fourier transform infrared spectrophotometery, scanning electron microscopy, energy–dispersive X–ray spectroscopy, and vibrating sample magnetometry. According to the method validation experiments, the proposed method provided low limits of detection (0.23–0.57 μg L 1) and quantification (0.79–1.74 μg L 1). The repeatability of the suggested approach, expressed as relative standard deviations, were equal to or less than 7.11% (at the concentrations of 25 and 50 μg L 1 of each analyte). The enrichment factors and extraction recoveries for the pesticides ranged from 217 to 449 and 43.1–89.1%, respectively. Finally, the efficiency of the proposed extraction procedure was verified by its applying on various fruit juice and fruit samples. |
| نویسنده | نفر چندم مقاله |
|---|---|
| محمدرضا افشار مقدم | چهارم |
| علی محبی | سوم |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| Passandi-Microchem Jornal.pdf | 1401/03/30 | 1515752 | دانلود |
