Control of matrix interferences by multiple linear regression models in the determination of arsenic and lead concentrations in fly ashes by inductively coupled plasma optical emission spectrometry

DSpace/Manakin Repository

Show simple item record

dc.contributor.author Ilander, Aki
dc.contributor.author Väisänen, Ari
dc.date.accessioned 2011-06-16T06:59:41Z
dc.date.available 2011-06-16T06:59:41Z
dc.date.issued 2010
dc.identifier.citation Ilander, A. & Väisänen, A. (2010). Control of matrix interferences by multiple linear regression models in the determination of arsenic and lead concentrations in fly ashes by inductively coupled plasma optical emission spectrometry. Journal of Analytical Atomic Spectrometry, (25), 1581-1587. doi:10.1039/c004191b
dc.identifier.issn
dc.identifier.uri http://hdl.handle.net/123456789/27189
dc.description.abstract A multiple linear regression technique was used to evaluate and correct the matrix interferences in the determination of As and Pb concentrations in fly ashes by inductively coupled plasma optical emission spectrometry. The direct determination of As and Pb in SRM 1633b by ICP-OES failed to obtain the certified concentrations, except in a couple of cases. However, it proved possible to use the multiple linear regression (MLR) technique to correct the determined concentrations to a satisfactory level. This method of correction is based on the multiple regression line obtained from the analysis of 19 synthetic mixtures of matrix and analyte elements (Al, As, Ca, Fe, Pb, and Si) at five concentration levels. The matrix interferences in the determination of As were caused by Al, Pb, and Ca whereas the matrix interferences in the determination of Pb were caused by Al and Fe. The most suitable parameters for the determination of As and Pb were a plasma power of 1500 W and a nebulizer flow of 0.5 or 0.6 L minˉ¹. The accuracy of the method was shown with the analysis of SRM 1633b and two fly ash samples with the standard addition method. A recovery rate of 96% can be reached for Pb at 220.353 nm with three digestion methods (US-TSD, US1 and MW) by using both direct measurement with thoroughly optimized plasma conditions and the MLR method. A recovery rate of 93% was obtained for As when using the MLR method at 193.696 nm with the digestion method US2, a plasma power of 1500 W, and nebulizer flow of 0.6 L minˉ¹. The corrected and determined concentrations of As and Pb in samples analyzed resulted in a precision of 0.6 to 3.9%. en
dc.language.iso eng
dc.publisher RSC - Royal Society of Chemistry
dc.relation.ispartofseries Journal of Analytical Atomic Spectrometry
dc.relation.uri
dc.rights © RSC. This article is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of the repository collections is not permitted, except that material may be duplicated by you for your research use or educational purposes in electronic or print form. You must obtain permission for any other use. Electronic or print copies may not be offered, whether for sale or otherwise to anyone who is not an authorised user.
dc.rights.uri
dc.subject.other ICP-OES en
dc.subject.other tuhka en
dc.subject.other arseeni en
dc.subject.other lyijy en
dc.subject.other määritys en
dc.subject.other fly ash en
dc.subject.other determination of As and Pb en
dc.title Control of matrix interferences by multiple linear regression models in the determination of arsenic and lead concentrations in fly ashes by inductively coupled plasma optical emission spectrometry
dc.type Article en
dc.identifier.urn URN:NBN:fi:jyu-2011061611022
dc.subject.kota 116
dc.contributor.laitos Kemian laitos fi
dc.contributor.laitos Department of Chemistry en
dc.type.uri http://purl.org/eprint/type/JournalArticle
dc.identifier.doi DOI:10.1039/C004191B
dc.description.version Final draft
eprint.status http://purl.org/eprint/type/status/PeerReviewed

This item appears in the following Collection(s)

Show simple item record