Chromatographia, ( ISI ), Volume (71), No (11), Year (2010-3) , Pages (1049-1054)

Title : ( Determination of Hg in natural water by Diphenylation by SDME-GC )

Authors: Ali Sarafraz Yazdi , , Zarrin Es’haghi ,

Citation: BibTeX | EndNote

Abstract: The purpose of the present work is to develop a simple, rapid, sensitive and accurate method for the derivatization and subsequently preconcentration of Hg(II) and the determination of its derivative, diphenylmercury, in natural water samples using gas chromatography-flame ionization detection. The method is based on the diphenylation using phenyl boronic acid, subsequent extraction of phenylmercury into a single drop of an organic solvent (toluene), followed by gas chromatography-flame ionization detection GC-FID analysis of the extract. The pH of the feed solution was kept in pH 5 with acetate buffer solution. Thus, the optimized conditions are: organic solvent, toluene; derivatization time, 10 min; extraction time, 15 min; microdrop volume, 1.6 lL; stirring rate, 600 rpm; sample volume, 5 mL. The limit of detection (LOD), calculated on the basis of five replicates was 0.02 lg mL-1. The relative standard deviation of the method (RSD%, n = 5) was 3.0. Linear range was between 0.05 and 5 lg mL-1 and preconcentration factor obtained for phenyl-mercury was 105.

Keywords

Gas chromotography–flame ionization detection Single drop
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@article{paperid:1016851,
author = {Sarafraz Yazdi, Ali and , and Zarrin Es’haghi},
title = {Determination of Hg in natural water by Diphenylation by SDME-GC},
journal = {Chromatographia},
year = {2010},
volume = {71},
number = {11},
month = {March},
issn = {0009-5893},
pages = {1049--1054},
numpages = {5},
keywords = {Gas chromotography–flame ionization detection Single drop microextraction Phenylmercury},
}

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%0 Journal Article
%T Determination of Hg in natural water by Diphenylation by SDME-GC
%A Sarafraz Yazdi, Ali
%A ,
%A Zarrin Es’haghi
%J Chromatographia
%@ 0009-5893
%D 2010

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