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Intercomparison of boron isotope and concentration measurements. Part II: Evaluation of results
Gonfiantini, R; Tonarini, S; Groning, M; Adorni-Braccesi, A; Al-Ammar, AS; Astner, M; Bachler, S; Barnes, RM; Bassett, RL; Cocherie, A; Deyhle, A; Dini, A; Ferrara, G; Gaillardet, J; Grimm, J; Guerrot, C; Krahenbuhl, U; Layne, G; Lemarchand, D; Meixner, A; Northington, DJ; Pennisi, M; Reitznerova, E; Rodushkin, I; Sugiura, N; Surberg, R; Tonn, S; Wiedenbeck, M; Wunderli, S; Xiao, YK; Zack, T
AbstractThe Istituto di Geoscienze e Georisorse (IGG), on behalf and with the support of the International Atomic Energy Agency (IAEA), prepared eight geological materials (three natural waters and five rocks and minerals), intended for a blind interlaboratory comparison of measurements of boron isotopic composition and concentration. The materials were distributed to twenty seven laboratories - virtually all those performing geochemical boron isotope analyses in the world which agreed to participate in the intercomparison exercise. Only fifteen laboratories, however, ultimately submitted the isotopic and/or concentration results they obtained on the intercomparison materials. The results demonstrate that interlaboratory reproducibility is not well reflected by the precision values reported by the individual laboratories and this observation holds true for both boron concentration and isotopic composition. The reasons for the discrepancies include fractionations due to the chemical matrix of materials, relative shift of the zero position on the 51113 scale and a lack of well characterized materials for calibrating absolute boron content measurements. The intercomparison materials are now available at the IAEA (solid materials) and IGG (waters) for future distribution.
KeywordBoron Isotopes Boron Concentration Reference Materials Intercomparison Of Measurements
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000183782900004
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Document Type期刊论文
Affiliation1.CNR, Ist Geosci & Georisorse, Area Ric, I-56124 Pisa, Italy
2.IAEA, Div Phys & Chem Sci, Vienna, Austria
3.Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA
4.Univ Bern, Dept Chem & Biochem, Bern, Switzerland
5.Geochem Technol Corp, Wheat Ridge, CO USA
6.Bur Rech Geol & Minieres, F-45060 Orleans, France
7.GEOMAR, Kiel, Germany
8.Univ Paris 06, Inst Phys Globe, Paris, France
9.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA
10.Geoforschungszentrum Potsdam, D-14473 Potsdam, Germany
11.W Coast Analyt Serv, Santa Fe Springs, CA USA
12.Lulea Tekniska Univ, SGAB, Lulea, Sweden
13.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo, Japan
14.Eidgenoss Mat & Forsch, St Gallen, Switzerland
15.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining, Qinghai, Peoples R China
16.Mem Univ Newfoundland, Dept Earth Sci, St John, NF, Canada
Recommended Citation
GB/T 7714
Gonfiantini, R,Tonarini, S,Groning, M,et al. Intercomparison of boron isotope and concentration measurements. Part II: Evaluation of results[J]. GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS,2003,27(1):41-57.
APA Gonfiantini, R.,Tonarini, S.,Groning, M.,Adorni-Braccesi, A.,Al-Ammar, AS.,...&Zack, T.(2003).Intercomparison of boron isotope and concentration measurements. Part II: Evaluation of results.GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS,27(1),41-57.
MLA Gonfiantini, R,et al."Intercomparison of boron isotope and concentration measurements. Part II: Evaluation of results".GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS 27.1(2003):41-57.
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