Application of Plackett-Burman and Doehlert designs for optimization of selenium analysis in plasma with electrothermal atomic absorption spectrometry.
Identifieur interne : 000058 ( PubMed/Checkpoint ); précédent : 000057; suivant : 000059Application of Plackett-Burman and Doehlert designs for optimization of selenium analysis in plasma with electrothermal atomic absorption spectrometry.
Auteurs : Myriam El Ati-Hellal [Tunisie] ; Fayçal Hellal [Tunisie] ; Abderrazek Hedhili [Tunisie]Source :
- Clinical biochemistry [ 1873-2933 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- chemical , blood : Selenium.
- chemical , isolation & purification : Selenium.
- methods : Spectrophotometry, Atomic.
- Hot Temperature, Humans, Limit of Detection.
Abstract
The aim of this study was the optimization of selenium determination in plasma samples with electrothermal atomic absorption spectrometry using experimental design methodology.
DOI: 10.1016/j.clinbiochem.2014.06.015
PubMed: 24956266
Affiliations:
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pubmed:24956266Le document en format XML
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<author><name sortKey="El Ati Hellal, Myriam" sort="El Ati Hellal, Myriam" uniqKey="El Ati Hellal M" first="Myriam" last="El Ati-Hellal">Myriam El Ati-Hellal</name>
<affiliation wicri:level="1"><nlm:affiliation>Laboratoire de Toxicologie, Unité de Toxicologie Recherche et Environnement, 10, rue Abou El Kacem Chabbi, Montfleury, 1008 Tunis cedex, Tunisia. Electronic address: mfh22002@yahoo.fr.</nlm:affiliation>
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<series><title level="j">Clinical biochemistry</title>
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<term>Humans</term>
<term>Limit of Detection</term>
<term>Selenium (blood)</term>
<term>Selenium (isolation & purification)</term>
<term>Spectrophotometry, Atomic (methods)</term>
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<keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en"><term>Selenium</term>
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<front><div type="abstract" xml:lang="en">The aim of this study was the optimization of selenium determination in plasma samples with electrothermal atomic absorption spectrometry using experimental design methodology.</div>
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<Month>10</Month>
<Day>07</Day>
</DateCreated>
<DateCompleted><Year>2015</Year>
<Month>06</Month>
<Day>11</Day>
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<Issue>15</Issue>
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<Month>Oct</Month>
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<Title>Clinical biochemistry</Title>
<ISOAbbreviation>Clin. Biochem.</ISOAbbreviation>
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<ArticleTitle>Application of Plackett-Burman and Doehlert designs for optimization of selenium analysis in plasma with electrothermal atomic absorption spectrometry.</ArticleTitle>
<Pagination><MedlinePgn>95-100</MedlinePgn>
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<Abstract><AbstractText Label="OBJECTIVES" NlmCategory="OBJECTIVE">The aim of this study was the optimization of selenium determination in plasma samples with electrothermal atomic absorption spectrometry using experimental design methodology.</AbstractText>
<AbstractText Label="DESIGN AND METHODS" NlmCategory="METHODS">11 variables being able to influence selenium analysis in human blood plasma by electrothermal atomic absorption spectrometry (ETAAS) were evaluated with Plackett-Burman experimental design. These factors were selected from sample preparation, furnace program and chemical modification steps. Both absorbance and background signals were chosen as responses in the screening approach. Doehlert design was used for method optimization.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">Results showed that only ashing temperature has a statistically significant effect on the selected responses. Optimization with Doehlert design allowed the development of a reliable method for selenium analysis with ETAAS. Samples were diluted 1/10 with 0.05% (v/v) TritonX-100+2.5% (v/v) HNO3 solution. Optimized ashing and atomization temperatures for nickel modifier were 1070°C and 2270°C, respectively. A detection limit of 2.1μgL(-1) Se was obtained. Accuracy of the method was checked by the analysis of selenium in Seronorm™ Trace element quality control serum level 1. The developed procedure was applied for the analysis of total selenium in fifteen plasma samples with standard addition method. Concentrations ranged between 24.4 and 64.6μgL(-1), with a mean of 42.6±4.9μgL(-1).</AbstractText>
<AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">The use of experimental designs allowed the development of a cheap and accurate method for selenium analysis in plasma that could be applied routinely in clinical laboratories.</AbstractText>
<CopyrightInformation>Copyright © 2014 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>El Ati-Hellal</LastName>
<ForeName>Myriam</ForeName>
<Initials>M</Initials>
<AffiliationInfo><Affiliation>Laboratoire de Toxicologie, Unité de Toxicologie Recherche et Environnement, 10, rue Abou El Kacem Chabbi, Montfleury, 1008 Tunis cedex, Tunisia. Electronic address: mfh22002@yahoo.fr.</Affiliation>
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<Author ValidYN="Y"><LastName>Hellal</LastName>
<ForeName>Fayçal</ForeName>
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<AffiliationInfo><Affiliation>Département de Chimie, Institut National des Sciences Appliquées et de Technologie, B.P. 676-1080 Tunis cedex, Tunisia.</Affiliation>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Atomic absorption spectrometry</Keyword>
<Keyword MajorTopicYN="N">Experimental design</Keyword>
<Keyword MajorTopicYN="N">Plasma</Keyword>
<Keyword MajorTopicYN="N">Selenium</Keyword>
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