2003
DOI: 10.1111/j.1751-908x.2003.tb00711.x
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Intercomparison of Boron Isotope and Concentration Measurements. Part II: Evaluation of Results

Abstract: The 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 intercomp… Show more

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Cited by 146 publications
(122 citation statements)
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References 24 publications
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“…Several analytical technique and inter-laboratory comparisons have been carried out to identify the potential source of analytical uncertainties. Tonarini et al and Gonantini et al 8,17 showed a signicant spread in results and poor agreement between different laboratories. The source of the observed variations in their study was likely related to the specic techniques used for boron extraction and purication or to differences in analytical procedures.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Several analytical technique and inter-laboratory comparisons have been carried out to identify the potential source of analytical uncertainties. Tonarini et al and Gonantini et al 8,17 showed a signicant spread in results and poor agreement between different laboratories. The source of the observed variations in their study was likely related to the specic techniques used for boron extraction and purication or to differences in analytical procedures.…”
Section: Introductionmentioning
confidence: 99%
“…The sample B4 was used for an inter-laboratory comparison study. 8,17 These four tourmalines represent some of the very best characterised materials for in situ analysis of boron isotopes that are presently available to the geoanalytical community. Four additional samples (EZ-272, JS-82N-1, JS-82A-1A, and EB-67-90) are from the boron isotopic study by Palmer and Slack.…”
Section: Tourmaline Samplesmentioning
confidence: 99%
“…Seawater (IAEA-B1) is purified regularly in the same way in order to check for a possible chemical fractionation due to an uncompleted recovery of boron, and to evaluate the accuracy and reproducibility of the overall procedure. [39][40][41] Reproducibility was obtained by repeated measurements of the NBS951, accuracy and reproducibility are controlled with the analysis of the IAEA-B1 seawater standard.…”
Section: Armentioning
confidence: 99%
“…Data given in Table 4 have been corrected to NBS 951 that passed the entire chemical separation procedure having a d 11 B value of -0.05 ± 0.23 % (1sd) that reproduces the untreated standard value. The precision and accuracy were estimated based on the analysis of eight independent dissolutions for IAEA standard B5 (basalt) that gave a d 11 B value of -4.39 ± 0.53% (1sd), which is well in the range of published data (Gonfiantini et al 2003).…”
Section: Boron Isotopesmentioning
confidence: 79%