Separation of aniline from water and wastewater samples based on activated carbon nanoparticles and dispersive solid phase extraction procedure
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 104
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شناسه ملی سند علمی:
JR_AMECJ-3-4_006
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
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).
کلیدواژه ها:
Aniline ، Activated carbon nanoparticles ، Ionic liquid ، Dispersive solid phase extraction procedure ، gas chromatography–mass
spectrometry
نویسندگان
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