Title : ( Multivariate Optimization on Flow-Injection Electrochemical Hydride Generation Atomic Absorption Spectrometry of Cadmium )
Authors: Mohammad Hossein Arbab Zavar , Mahmod CHamsaz , Abbas yousefi , Mostafa Aliakbari ,
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Abstract
A novelelectrochemicalhydridegeneration(ECHG)systemworkinginflow-injection(FI)modewas developedfordeterminationofcadmiumcoupledtoanelectricallyheatedquartztubeatomizer(QTA) by atomicabsorptionspectrometry(AAS).APlackett–Burmanexperimentaldesignforscreeninghas been usedtoevaluatetheinfluenceofseveralvariablesontheanalyticalresponse.Then,thesignificant parameterssuchastheconcentrationofNaClincatholyte,appliedelectrolyticcurrentandflowrateof carriergashavebeensimultaneouslyoptimizedusingacentralcompositedesign(CCD).Underthe optimizedconditions,thedetectionlimit(3sb, n¼9) wasfoundtobe0.51ngmL1 Cd andtherelative standarddeviation(RSD)forninereplicateanalysesof20ngmL1 Cd was6.5%.Thecalibrationcurve was linearintherangeof2–50ngmL1 of Cd.Thepotentialinterferencesfromvariousionswerealso evaluated.Theanalysisofareferencematerialshowedgoodagreementwiththecertifiedvalue.The proposedmethodwassuccessfullyappliedtothedeterminationofCdintapwatersample.
Keywords
, Electrochemical hydridegeneration; Atomic absorptionspectrometry; Flow, injection; Experimental design; Cadmium
@article{paperid:1031371,
author = {Arbab Zavar, Mohammad Hossein and CHamsaz, Mahmod and Abbas Yousefi and Aliakbari, Mostafa},
title = {Multivariate Optimization on Flow-Injection Electrochemical Hydride Generation Atomic Absorption Spectrometry of Cadmium},
journal = {Talanta},
year = {2012},
volume = {97},
month = {August},
issn = {0039-9140},
pages = {229--234},
numpages = {5},
keywords = {Electrochemical hydridegeneration; Atomic absorptionspectrometry; Flow-injection; Experimental design;
Cadmium},
}
%0 Journal Article
%T Multivariate Optimization on Flow-Injection Electrochemical Hydride Generation Atomic Absorption Spectrometry of Cadmium
%A Arbab Zavar, Mohammad Hossein
%A CHamsaz, Mahmod
%A Abbas Yousefi
%A Aliakbari, Mostafa
%J Talanta
%@ 0039-9140
%D 2012
