Separation of aniline from water and wastewater samples based on activated carbon nanoparticles and dispersive solid phase extraction procedure

Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_AMECJ-3-4_006

تاریخ نمایه سازی: 14 آذر 1402

Abstract:

The water, wastewater and air are the main sources of aniline in environment. Aniline has a toxic effect in the human body and environment and so, must be determined by novel techniques. In this study, the activated carbon with microwave heating methods (MHM-ACNPs) were used for extraction aniline from waters by dispersive ionic liquid solid phase extraction procedure (D-IL-SPE) and compared to the activated carbon (AC). For this purpose, the mixture of acetone, ionic liquid and ۳۰ mg of MHM-ACNPs/ AC added to ۱۰۰ mL of water samples at pH=۸. After sonication for ۱۰ min, the benzene ring in aniline as electron acceptor was chemically adsorbed on carboxylic groups of MHM-ACNPs as electron donors (MHM-ACNPs-COO─……C۶H۵-NH۲) and then, the adsorbent was collected by hydrophobic ionic liquid phase in bottom of conical centrifuging tube. Finally, the aniline was released from MHM-ACNPs in remained solution by changing pH and the concentration of aniline determined by gas chromatography–flame ionization detector (GC-FID). The working range (WR) was obtained from ۲.۰ to ۴۰۰۰ μg L-۱ (RSD % < ۱.۸). The detection limit (LOD) and preconcentration factor (PF) and linear range (LR) were achieve ۰.۶ μg L-۱, ۱۹۶.۴ and ۲.۰─۹۵۰ μg L-۱, respectively. The proposed method was validated by spiking of real samples and analysis with gas chromatography mass detector (GC-MS).

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Authors

Saeed Fakhraie

Chemistry Department, Yasouj University, P.O. Box ۷۴۸۳۱-۷۵۹۱۸, Yasouj, Iran

Morteza Mehdipour Rabouri

Occupational Health Engineering Department, , Kerman University of Medical Sciences, Kerman, Iran

Ahmad Salarifar

Environmental Engineering, Faculty of Natural Resources, Islamic Azad University, Bandar Abbas Branch, Iran