Title : ( Application of titanium dioxide nanoparticles for preconcentration and determination of As(V)in water samples by graphite furnace atomic absorption spectrometry )
Authors: Mahmod CHamsaz , Mohammad Hassan Entezari , md jelas haron , Saeid Asadpour , narjes ghows ,
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Abstract
Titanium dioxide (TiO2) nanoparticles were prepared by Sonochemical synthesis method at low intensity and characterized using X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). The preconcentration capability of TiO2 nanoparticles for As(V) was assessed in this work using column method from aqueous solution prior to their determination by graphite furnace atomic absorption spectrometry(GFAAS). The optimum experimental parameters for preconcentration of As(v), such as pH, volume and flow rate of sample solution, eluent and interfering ions, have been investigated. The adsorption capacity of TiO2 nanoparticles for As(v) was found to be 32.25 mg g-1. Also the method detection limit, precision (R.S.D., n=8) and enrichment factor for As(v)were 72 ng L-1 , 5.3 % and 83, respectively. The method has been applied for the determination of trace element in some environmental water samples with satisfactory results.
Keywords
, Preconcentration, As(V), Titanium Dioxide Nanoparticles, Microcolumn separation, Adsorption capacity, GFAAS
@article{paperid:1029762,
author = {CHamsaz, Mahmod and Entezari, Mohammad Hassan and Md Jelas Haron and Asadpour, Saeid and Ghows, Narjes},
title = {Application of titanium dioxide nanoparticles for preconcentration and determination of As(V)in water samples by graphite furnace atomic absorption spectrometry},
journal = {Research Journal of Pharmaceutical, Biological and Chemical Sciences},
year = {2012},
volume = {3},
number = {3},
month = {August},
issn = {0975-8585},
pages = {350--359},
numpages = {9},
keywords = {Preconcentration; As(V); Titanium Dioxide Nanoparticles; Microcolumn separation; Adsorption capacity; GFAAS},
}
%0 Journal Article
%T Application of titanium dioxide nanoparticles for preconcentration and determination of As(V)in water samples by graphite furnace atomic absorption spectrometry
%A CHamsaz, Mahmod
%A Entezari, Mohammad Hassan
%A Md Jelas Haron
%A Asadpour, Saeid
%A Ghows, Narjes
%J Research Journal of Pharmaceutical, Biological and Chemical Sciences
%@ 0975-8585
%D 2012
