A critical evaluation of interlaboratory data on total, elemental, and isotopic carbon in the carbonaceous particle reference material, NIST SRM 1649a

dc.contributor.authorCurrie, L. A.
dc.contributor.authorBenner, B. A.
dc.contributor.authorKessler, J. D.
dc.contributor.authorKlinedinst, D. B.
dc.contributor.authorKlouda, G. A.
dc.contributor.authorMarolf, J. V.
dc.contributor.authorSlater, John F.
dc.contributor.authorWise, S. A.
dc.contributor.authorCachier, H.
dc.contributor.authorCary, R.
dc.contributor.authorChow, J. C.
dc.contributor.authorWatson, J.
dc.contributor.authorDruffel, E. R. M.
dc.contributor.authorMasiello, C. A.
dc.contributor.authorEglinton, T. I.
dc.contributor.authorPearson, A.
dc.contributor.authorReddy, C. M.
dc.contributor.authorGustafsson, O.
dc.contributor.authorHartmann, P. C.
dc.contributor.authorQuinn, J. G.
dc.contributor.authorHedges, J. I.
dc.contributor.authorPrentice, K. M.
dc.contributor.authorKirchstetter, T. W.
dc.contributor.authorNovakov, T.
dc.contributor.authorPuxbaum, H.
dc.contributor.authorSchmid, H.
dc.date.accessioned2010-09-17T12:42:08Z
dc.date.available2010-09-17T12:42:08Z
dc.date.issued2002-05
dc.description.abstractBecause of increased interest in the marine and atmospheric sciences in elemental carbon (EC), or black carbon (BC) or soot carbon (SC), and because of the difficulties in analyzing or even defining this pervasive component of particulate carbon, it has become quite important to have appropriate reference materials for intercomparison and quality control. The NIST "urban dust" Standard Reference Material? SRM 1649a is useful in this respect, in part because it comprises a considerable array of inorganic and organic species, and because it exhibits a large degree of (14C) isotopic heterogeneity, with biomass carbon source contributions ranging from about 2 % (essentially fossil aliphatic fraction) to about 32 % (polar fraction). A primary purpose of this report is to provide documentation for the new isotopic and chemical particulate carbon data for the most recent (31 Jan. 2001) SRM 1649a Certificate of Analysis. Supporting this is a critical review of underlying international intercomparison data and methodologies, provided by 18 teams of analytical experts from 11 institutions. Key results of the intercomparison are: (1) a new, Certified Value for total carbon (TC) in SRM 1649a; (2) 14C Reference Values for total carbon and a number of organic species, including for the first time 8 individual PAHs; and (3) elemental carbon (EC) Information Values derived from 13 analytical methods applied to this component. Results for elemental carbon, which comprised a special focus of the intercomparison, were quite diverse, reflecting the confounding of methodological-matrix artifacts, and methods that tended to probe more or less refractory regions of this universal, but ill-defined product of incomplete combustion. Availability of both chemical and 14C speciation data for SRM 1649a holds great promise for improved analytical insight through comparative analysis (e.g., fossil/ biomass partition in EC compared to PAH), and through application of the principle of isotopic mass balance.en_US
dc.description.bibliographicCitationCarrie, L. A., Benner, B. A., Kessler, J. D., Klinedinst, D. B., Klouda, G. A., Marolf, J. V., . . . Schmid, H. (2002). A Critical Evaluation of Interlaboratory Data on Total, Elemental, and Isotopic Carbon in the Carbonaceous Particle Reference Material, NIST SRM 1649a. Journal of Research of the National Institute of Standards and Technology, 107(3), 279-298.en_US
dc.format.extent167128 bytesen_US
dc.format.mediaTypePDFen_US
dc.identifier.urihttps://hdl.handle.net/10474/560
dc.language.isoen_USen_US
dc.publisherNational Institute of Standards and Technologyen_US
dc.relation.requiresAdobe Acrobat Readeren_US
dc.rightsPublisher retains all ownership rights. Further reproduction in violation of copyright is prohibiteden_US
dc.subject.otherelemental carbonen_US
dc.subject.otherfossil and biomass carbonen_US
dc.subject.otherinternational intercomparisonen_US
dc.subject.othertotal carbon certified valueen_US
dc.titleA critical evaluation of interlaboratory data on total, elemental, and isotopic carbon in the carbonaceous particle reference material, NIST SRM 1649aen_US
dc.typeArticleen_US

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