Development and Validation of a Method to Determine the Boron Isotopic Composition of Crop Plants

Rosner, Martin; Pritzkow, Wolfgang; Vogl, Jochen; Voerkelius, S.

doi:10.1021/ac102836h

Cited by 54 publications

(76 citation statements)

References 18 publications

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“…This compromises the ultimately achievable accuracy. For a discussion of the impact of matrix effects on the error budget, see, for instance, Rosner et al [29]. A review of heavy-element stable isotopic variations in terrestrial materials has been published recently by Tanimizu et al [30].…”

Section: P R Ef Pref Ref ( E E ) ( E E ) ( E E )mentioning

confidence: 99%

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Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

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Vogl

et al. 2014

Pure and Applied Chemistry

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Abstract:Since the early 1950s, the number of international measurement standards for anchoring stable isotope delta scales has mushroomed from 3 to more than 30, expanding to more than 25 chemical elements. With the development of new instrumentation, along with new and improved measurement procedures for studying naturally occurring isotopic abundance variations in natural and technical samples, the number of internationally distributed, secondary isotopic reference materials with a specified delta value has blossomed in the last six decades to more than 150 materials. More than half of these isotopic reference materials were produced for isotope-delta measurements of seven elements: H, Li, B, C, N, O, and S. The number of isotopic reference materials for other, heavier elements has grown considerably over the last decade. Nevertheless, even primary international measurement standards for isotope-delta measurements are still needed for some elements, including Mg, Fe, Te, Sb, Mo, and Ge. It is recommended that authors publish the delta values of internationally distributed, secondary isotopic reference materials that were used for anchoring their measurement results to the respective primary stable isotope scale.

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Section: P R Ef Pref Ref ( E E ) ( E E ) ( E E )mentioning

confidence: 99%

“…Silicon has three stable isotopes, 28 Si, 29 Si, and 30 Si, with isotopic abundances of 92.2, 4.7, and 3.1 %, respectively, in naturally occurring terrestrial material. While being the second most abundant element on Earth, silicon isotopes have found only limited applications.…”

Section: Siliconmentioning

confidence: 99%

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

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Coplen

Vogl

et al. 2014

Pure and Applied Chemistry

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549

436

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“…It needs to be clarified if the shift of Δ 11 B leaf-roots =27‰ in full grown bell pepper plants is constant or if it varies depending on external conditions like irrigation water, B uptake time or transport 11 B values was calculated after ref. [6], see text for explanation. All aliquots were measured 3 times, beside aliquot 1 of sample stem 1 and aliquot 2 of sample stem 3, which were measured 4 times and aliquot 1 of sample leaf 1 which was measured 2 times.…”

Section: Discussionmentioning

confidence: 99%

“…The first of the two B-matrix ion-chromatographic separation steps is cation separation using 0.02 mol/L HCl in columns loaded with 0.5 mL of the anion exchange resin AG 50W-X8 (see [6] for details). The remaining sample matrix was separated using the boron specific resin Amberlite IRA-743.…”

Section: Sample Preparationmentioning

confidence: 99%

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Boron Isotope Fractionation in Bell Pepper

Geilert¹,

Vogl²,

Rosner³

et al. 2015

Mass Spectrom Purif Tech

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Various plant compartments of a single bell pepper plant were studied to verify the variability of boron isotope composition in plants and to identify possible intra-plant isotope fractionation. Boron mass fractions varied from 9.8 mg/ kg in the fruits to 70.0 mg/kg in the leaves. Boron (B) isotope ratios reported as δ 11 B ranged from -11.0‰ to +16.0‰ (U ≤ 1.9‰, k=2) and showed a distinct trend to heavier δ 11 B values the higher the plant compartments were located in the plant. A fractionation of Δ 11 B leaf-roots = 27‰ existed in the studied bell pepper plant, which represents about 1/3 of the overall natural boron isotope variation (ca. 80‰). Two simultaneous operating processes are a possible explanation for the observed systematic intra-plant δ 11 B variation: 1) B is fixed in cell walls in its tetrahedral form (borate), which preferentially incorporates the light B isotope and the remaining xylem sap gets enriched in the heavy B isotope and 2) certain transporter preferentially transport the trigonal 11 B-enriched boric acid molecule and thereby the heavy 11 B towards young plant compartments which were situated distal of the roots and typically high in the plant. Consequently, an enrichment of the heavy 11 B isotope in the upper young plant parts located at the top of the plant could explain the observed isotope systematic. The identification and understanding of the processes generating systematic intra-plant δ 11 B variations will potentially enable the use of B isotope for plant metabolism studies.

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Global boron cycle in the Anthropocene

Schlesinger

Vengosh

2016

Global Biogeochemical Cycles

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This paper presents a revised and updated synthesis of the biogeochemical cycle of boron at the Earth's surface, where the largest fluxes are associated with the injection of sea‐salt aerosols to the atmosphere (1.44 Tg B/yr), production and combustion of fossil fuels (1.2 Tg B/yr), atmospheric deposition (3.48 Tg B/yr), the mining of B ores (1.1 Tg B/yr), and the transport of dissolved and suspended matter in rivers (0.80 Tg B/yr). The new estimates show that anthropogenic mobilization of B from the continental crust exceeds the naturally occurring processes, resulting in substantial fluxes to the ocean and the hydrosphere. The anthropogenic component contributes 81% of the flux in rivers. The mean residence time for B in seawater supports the use of δ11B in marine carbonates as an index of changes in the pH of seawater over time periods of > 1 Ma.

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Development and Validation of a Method to Determine the Boron Isotopic Composition of Crop Plants

Cited by 54 publications

References 18 publications

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

Boron Isotope Fractionation in Bell Pepper

Global boron cycle in the Anthropocene

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