European Journal of Scientific Research, ( ISI ), Volume (48), No (4), Year (2011-1) , Pages (606-613)

Title : ( Determination of Cadmium by FAAS after Adsorption and Preconcentration on 2-Aminothiophenol Modified Silica Gel )

Authors: M. Khosravan , Amir SHokooh Saljooghi ,

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Abstract

An analytical method using silica gel chemically modified with 2-aminothiophenol for preconcentration of Cadmium, in a column system, and their sequential determination by flame atomic absorption spectrometry (FAAS), was developed. In this work, Cadmium was adsorbed onto silica gel chemically modified with 2-aminothiophenol and then was recovered by nitric acid. Solutions of cadmium were passed through a glass column packed with 100 mg of the sorbent material, at pH 5.0, and Cadmium was eluted with 2.0 M HNO3 at a flow rate of 2.0 ml min-1. The relative standard deviation (RSD) for eight replicate determinations at the 2.5 μg of Cadmium was ±0.94%. The calibration curve using the preconcentration system was linear from 0.01 to 4 μg mL-1 in final solution with a correlation coefficient of 0.9993. This method was successfully applied for determination of Cadmium in various samples.

Keywords

, Cadmium Determination, Solid Phase Extraction, Modified Silica Gel, 2- Aminothiophenol.
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@article{paperid:1020512,
author = {M. Khosravan and SHokooh Saljooghi, Amir},
title = {Determination of Cadmium by FAAS after Adsorption and Preconcentration on 2-Aminothiophenol Modified Silica Gel},
journal = {European Journal of Scientific Research},
year = {2011},
volume = {48},
number = {4},
month = {January},
issn = {1450-216X},
pages = {606--613},
numpages = {7},
keywords = {Cadmium Determination; Solid Phase Extraction; Modified Silica Gel; 2- Aminothiophenol.},
}

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%0 Journal Article
%T Determination of Cadmium by FAAS after Adsorption and Preconcentration on 2-Aminothiophenol Modified Silica Gel
%A M. Khosravan
%A SHokooh Saljooghi, Amir
%J European Journal of Scientific Research
%@ 1450-216X
%D 2011

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