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dc.creatorSredović-Ignjatović, Ivana D.
dc.creatorOnjia, Antonije
dc.creatorIgnjatović, Ljubiša M.
dc.creatorTodorović, Žaklina
dc.creatorRajaković, Ljubinka V.
dc.date.accessioned2021-03-10T12:55:35Z
dc.date.available2021-03-10T12:55:35Z
dc.date.issued2015
dc.identifier.issn0003-2719
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3150
dc.description.abstractDetermination of total halogens in coal was investigated with oxygen bomb combustion followed by ion chromatography. Experimental parameters were optimized by fractional factorial design and response surface methodology. Fractional factorial design was employed in screening experiments to evaluate the influence of the oxygen pressure, catalyst, absorption solution, reduction reagent, bomb cooling time, and a combustion aid on the combustion of coal in an oxygen bomb. Response surface methodology was conducted to further refine the results obtained by fractional factorial design and to define parameters for the procedure. The accuracy and precision of combustion with ion chromatography were evaluated by the use of two certified reference materials and by fortified in-house coal standards. The limits of detection and quantification for total halogens were 0.84 and 2.80 milligrams per kilogram, respectively, for 500 milligram samples. Ion chromatography provided relative standard deviations less than 4 percent, recoveries exceeding 95 percent, and was convenient. This method is recommended for routine determination of total halogens in coal because of its reliability.en
dc.publisherTaylor & Francis Inc, Philadelphia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43009/RS//
dc.rightsrestrictedAccess
dc.sourceAnalytical Letters
dc.subjectTotal coal halogensen
dc.subjectFractional factorial designen
dc.subjectIon chromatographyen
dc.subjectCombustionen
dc.subjectresponse surface methodology (RSM)en
dc.titleExperimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatographyen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage2612
dc.citation.issue16
dc.citation.other48(16): 2597-2612
dc.citation.rankM23
dc.citation.spage2597
dc.citation.volume48
dc.identifier.doi10.1080/00032719.2015.1041029
dc.identifier.rcubconv_4775
dc.identifier.scopus2-s2.0-84939218378
dc.identifier.wos000360295100007
dc.type.versionpublishedVersion


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