%0 Journal Article
%T Extraction of Cu(II) Ions in Wastewaters Using New Solid/Liquid Phase Microextraction Technique Based on Incorporating Functionalized Carbon Nanotubes into Polypropylene Hollow Fiber
%A Es¡¯haghi Zarrin
%A Ahmadpour Ali
%A Tanha Ali Akbar
%A Sayfi Ali
%A Ayati Ali
%J Open Access Library Journal
%V 1
%N 2
%P 1-15
%@ 2333-9721
%D 2014
%I Open Access Library
%R 10.4236/oalib.1100380
%X This research describes a new design of hollow fiber solid-liquid phase microextraction (HF¨C SLPME) which was developed for the extraction and measurement of Cu(II) ion in water samples combined with atomic absorption spectroscopy. This method consists of an aqueous feed and the functionalized multi-walled carbon nanotubes (F-MWCNTs) with HNO3 and NaClO, dispersed into n-octanol, are held within the pores and the lumen of a porous hollow fiber as the extractor phase. The presented method allows an effective and enriched recuperation of ionic analyte into MWCNTs/organic phase. The effective parameters were investigated. Under the optimized conditions, a sample of industrial waste water was successfully purified using the proposed method. Our results showed that at optimized extraction conditions, the calibration curve was linear in the range of 0.01 - 20 ¦Ìg/mL of Cu(II) ions in the initial solution with R2 > 0.99 for both F-MWCNTs samples. All experiments were carried out at room temperature (25¡æ ¡À 0.5¡æ).
%K Solid/Liquid Phase Microextraction
%K Multi-Walled Carbon Nanotube
%K Hollow Fiber
%K Cu(II)
%K Flame Atomic Absorption Spectroscopy
%U http://www.oalib.com/paper/3004554