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

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Article Type:
Research/Original Article (بدون رتبه معتبر)
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 30 mg of MHM-ACNPs/AC added to 100 mL of water samples at pH=8. After sonication for 10 min, the benzene ring in aniline as electron acceptor was chemically adsorbed on carboxylic groups of MHM-ACNPs aselectron donors (MHM-ACNPs-COO─......C6H5-NH2) 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 2.0 to 4000 μgL-1(RSD % < 1.8). The detection limit (LOD) and preconcentration factor (PF) and linear range (LR) were achieve 0.6 μgL-1, 196.4 and 2.0─950 μgL-1, respectively. The proposed method was validated by spiking of real samples and analysis with gas chromatography mass detector (GC-MS)

Language:
English
Published:
Analytical Methods in Environmental Chemistry Journal, Volume:3 Issue: 4, Dec 2020
Pages:
72 to 84
https://magiran.com/p2220253  
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