نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه شیمی، دانشکده علوم، دانشگاه آزاد اسلامی واحد تبریز، تبریز، ایران.
2 گروه پژوهشی شیمی و فرآیند، پژوهشگاه نیرو، تهران، ایران
3 گروه شیمی، دانشکده علوم، دانشگاه ارومیه، ارومیه، ایران.
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this research, the MPC obtained from the pyrolysis of r-MMIL-88 was applied for preconcentration of two homo and hetero-polycyclic aromatic hydrocarbons. The target analytes were determined by high-performance liquid chromatography with ultra violet detection system (HPLC-UV). Various characterization techniques such as FT-IR spectroscopy, TEM, VSM, and XRD were employed. After that, central composite design (CCD) method was utilized to explore and optimize affecting factors. Applicability of the MPC was explored using dibenzothiophene and 9,10-dimethylanthracene, as the model analytes. Under the optimum condition, LODs and linear ranges were achieved in the domain of 0.05-0.1 µg L-1 and 0.25-500 µg L-1, respectively. Repeatability of the method as RSDs was evaluated which was <7.8% (within-day, n = 5) and <12.5% (between-day, n = 3). Ultimately, the method was applied to analyze well and seawater samples and satisfactory results (RSDs%, 6.7-10.6%; relative recoveries, 94-105%) were obtained. The results of the analysis of real samples showed that this technique can be successfully used to extract and preconcentrate the desired compounds in samples with complex texture.
کلیدواژه‌ها [English]
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