TY - CONF A1 - Rosner, Martin T1 - Intercomparison of delta26Mg Values in Mg Isotope RMs and Standards N2 - Accurate measurements of stable isotope abundance ratio variations are often reported using artifact based delta-scales, which rely on suitable isotopic reference materials (iRM) for their realization. For example, variations in the 26Mg/24Mg isotope abundance ratio in natural systems are typically reported as delta26Mg values that represents the relative difference between the 26Mg/24Mg ratio measured in a sample relative to its measurement preferably in an iRM. In the past, such delta26Mg measurements were referenced to NIST SRM 980, the initial zero of the delta26Mg scale. With the development of MC-ICPMS, the detection of small but measurable isotopic differences in different chips of SRM 980 became apparent. It was then replaced by a Mg solution (DSM3), the new zero of the delta26Mg scale. A potential replacement iRM for DSM3 has been developed, ERM-AE143. This iRM has also been measured for its absolute isotope amount ratios1,2 making it traceable to the SI. The results of an delta26Mg intercomparison experiment include the Mg iRMs SRM 980, IRMM-009, ERM-AE143, AE144, AE145 standards DSM3 and Cambridge-1. The intercomparison involved 5 expert laboratories, consisting of 3 national metrological institutes (BAM, NIST, PTB) and 2 scientific research laboratories (GFZ Potsdam, UBremen). The iRMs were measured relative to AE143 and cover a range of ≈5 ‰ in delta26Mg. IRMM-009 has the lowest delta26Mg value while DSM3 has the highest, spanning a range in values that covers natural Mg isotope variations. The 2SD reproducibilities of the individual values from the different laboratories range from 0.02 to 0.26 ‰. The mean delta26Mg values, calculated from the laboratory means however show 2SD reproducibilities varing between 0.025 and 0.093 ‰. Propagated measurement uncertainties suggest a standard uncertainty of about 0.1‰ for delta26Mg determinations. T2 - Goldschmidt 2017 CY - Paris, France DA - 13.08.2017 KW - Magnesium delta value KW - Isotope reference material KW - Intercalibration KW - Magnesium isotope ratio PY - 2017 AN - OPUS4-44639 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Vogl, Jochen A1 - Rosner, Martin ED - Boschung, D. ED - Bremmer, J.N. T1 - Lead isotope analysis of an ancient voodoo doll KW - Archaeometry KW - Isotopes KW - Lead PY - 2015 SN - 978-3-7705-5725-7 SP - 127 EP - 132, Plates 1-5 PB - Wilhelm Fink GmbH & Co. Verlags-KG CY - Paderborn AN - OPUS4-33034 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosner, Martin A1 - Vogl, Jochen T1 - New offset Delta11B isotope reference materials for geochemical and environmental boron isotope studies N2 - The isotopic composition of boron is a well established tool in various areas of Science and industries. Boron isotope compositions are typically reported as 6"B values which indicate the isotopic difference of a sample relative to the internationally accepted isotope reference material NIST SRM 951. A significant drawback of all of the available boron isotope reference materials is that non covers a natural boron isotope composition apart from NIST SRM 951. PY - 2011 SN - 1471-8022 VL - 75 IS - 3 SP - 1755 PB - Mineralogical Society of Great Britain and Ireland CY - London AN - OPUS4-32684 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin A1 - Vogl, Jochen T1 - Three new offset Delta11B isotope reference materials for environmental boron isotope studies N2 - The isotopic composition of boron is a well established tool in various areas of Science and industry. Boron isotope compositions are typically reported as 5nB values which indicate the isotopic difference of a sample relative to the isotope reference material NIST SRM 951. A significant drawback of all of the available boron isotope reference materials is that none of them covers a natural boron isotope composition apart from NIST SRM 951. To fill this gap of required 5UB reference materials three new solution boric acid reference materials were produced, which cover 6096o of the natural boron isotope Variation (-20 to 40%oo B) of about 100%o. The new reference materials are certified for their B values and are commercially available through European Reference Materials® (http://wwrv.enn-cmi.org). The newly produced and certified boron isotope reference materials will allow straightforward method Validation and quality control of boron isotope data. T2 - International symposium on isotopes in hydrology, marine ecosystems and climate change studies CY - Monaco DA - 27.03.2011 KW - Boron KW - Boron isotope variations KW - Delta-scale KW - Stable isotopes KW - Isotope reference materials KW - Delta reference materials KW - Metrology in chemistry PY - 2011 SN - 978-92-0-135610-9 VL - 2 SP - 377 EP - 380 AN - OPUS4-31858 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seewald, J.S. A1 - Reeves, E.P. A1 - Bach, W. A1 - Saccocia, P.J. A1 - Craddock, P.R. A1 - Shanks III, W.C. A1 - Sylva, S.P. A1 - Pichler, T. A1 - Rosner, Martin A1 - Walsh, E. T1 - Submarine venting of magmatic volatiles in the Eastern Manus Basin, Papua New Guinea N2 - The SuSu Knolls and DESMOS hydrothermal fields are located in the back-arc extensional transform zone of the Eastern Manus Basin. In 2006, highly acidic and ΣSO4-rich vent fluids were collected at both sites and analyzed for the chemical and isotopic composition of major and trace species. Fluids exiting the seafloor have measured temperatures from 48 to 215 °C and are milky white in appearance due to precipitation of elemental S0. Vent fluid concentrations of Na, K, and Mg are depleted by as much as 30% relative to seawater, but have the same relative abundance. In contrast, the fluids are highly enriched in dissolved ΣCO2, Cl, SiO2(aq), Fe, and Al relative to seawater. Measured pH (25 °C) ranged from 0.95 to 1.87 and aqueous ΣSO4 ranged from 35 to 135 mmol/kg. The chemical and isotopic composition points to formation via subsurface mixing of seawater with a Na-, K-, Mg-, and Ca-free, volatile-rich magmatic fluid exsolved from subsurface magma bodies during a process analogous to subaerial fumarole discharge. Estimates of the magmatic end-member composition indicate a fluid phase where H2O > SO2 > CO2 ≈ Cl > F. The hydrogen and oxygen isotopic composition of H2O and carbon isotopic composition of ΣCO2 in the vent fluids strongly suggest a contribution of slab-derived H2O and CO2 to melts generated in the mantle beneath the Eastern Manus volcanic zone. Abundant magmatically-derived SO2 undergoes disproportionation during cooling in upflow zones and contributes abundant acidity, SO42-, and S0 to the venting fluids. Interaction of these highly acidic fluids with highly altered mineral assemblages in the upflow zone are responsible for extensive aqueous mobilization of SiO2(aq), Fe, and Al. Temporal variability in the speciation and abundance of aqueous S species between 1995 and 2006 at the DESMOS vent field suggests an increase in the relative abundance of SO2 in the magmatic end-member that has mixed with seawater in the subsurface. Results of this study constrain processes responsible for the formation of hot-spring fluids in magmatically active back-arc environments and the resulting chemical exchange between the lithosphere and water column. PY - 2015 DO - https://doi.org/10.1016/j.gca.2015.04.023 SN - 0016-7037 SN - 1872-9533 VL - 163 SP - 178 EP - 199 PB - Elsevier Science CY - New York, NY AN - OPUS4-33433 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosner, Martin A1 - Wiedenbeck, M. A1 - Ludwig, T. T1 - Composition-induced variations in SIMS instrumental mass fractionation during boron isotope ratio measurements of silicate glasses N2 - An analytical artefact is reported here related to differences in instrumental mass fractionation between NIST SRM glasses and natural geological glasses during SIMS boron isotope determinations. The data presented demonstrated an average 3.4‰ difference between the NIST glasses and natural basaltic to rhyolitic glasses mainly in terms of their sputtering-induced fractionation of boron isotopes. As no matrix effect was found among basaltic to rhyolitic glasses, instrumental mass fractionation of most natural glass samples can be corrected by using appropriate glass reference materials. In order to confirm the existence of the compositionally induced variations in boron SIMS instrumental mass bias, the observed offset in SIMS instrumental mass bias has been independently reproduced in two laboratories and the phenomenon has been found to be stable over a period of more than one year. This study highlights the need for a close match between the chemical composition of the reference material and the samples being investigated. Nous montrons l'existence d'un artefact analytique reliéà différents fractionnements de masse instrumentaux, observés sur les verres NIST SRM et des verres naturels durant des mesures des isotopes de bore par SIMS. Les données montrent une différence d'environ 3.4‰ entre les verres NIST et les verres naturels, de composition variant de basaltique à rhyolitique, en termes de fractionnement des isotopes du bore principalement induit par le phénomène de dispersion. Comme aucun effet de matrice n'a été observé entre les verres basaltiques et les verres rhyolitiques, le fractionnement de masse instrumental de la plupart des verres naturels peut être corrigé en utilisant des verres de références appropriés. Dans le but de confirmer l'existence de biais de masse liéà la composition lors de mesure du bore par SIMS, nous avons reproduit indépendamment le décalage observé entre deux laboratoires et ce phénomène s'est révélé stable sur une période de plus d'un an. Cette étude met en lumière le besoin d'ajuster précisément les compositions chimiques des matériaux de référence et des échantillons à analyser. KW - Boron isotopes KW - SIMS KW - Matrix effect KW - Glass reference materials KW - Instrumental mass fractionation KW - Isotope du bore KW - Effet de matrice KW - Matériaux vitreux de référence KW - Fractionnement de masse instrumental PY - 2008 DO - https://doi.org/10.1111/j.1751-908X.2008.00875.x SN - 1639-4488 SN - 1751-908X VL - 32 IS - 1 SP - 27 EP - 38 PB - Blackwell CY - Oxford AN - OPUS4-17783 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosner, Martin T1 - Geochemical and instrumental fundamentals for accurate and precise strontium isotope data of food samples: comment on "determination of the strontium isotope ration by ICP-MS ginseng as a tracer of regional origin" (Choi et al., 2008) N2 - The strontium isotope composition of food samples has been successfully used to trace the provenance of both herbal and animal agricultural products. Adequately accurate and precise 87Sr/86Sr ratios, however, are key to unravel environmental and anthropogenic strontium contributions of specific growing areas. In a recently published analytical method in Food Chemistry by Choi et al. (2008) a demonstrably inadequate protocol for the determination of 87Sr/86Sr ratios of ginseng is presented. Based on well established geological and analytical fundamentals the 87Sr/86Sr ratios presented by Choi et al. (2008) are too inaccurate and imprecise to be used to trace the origin of the ginseng. Appropriate wet chemical separation techniques and mass spectrometric instrumentation enables the generation of 87Sr/86Sr data with very low expanded uncertainties (<0.05%, k = 2). Those high quality data allow the identification of even small strontium contributions of source reservoirs or physical and anthropogenic processes if diagnostic isotope compositions are present. KW - Strontium isotopes KW - Food provenance studies KW - TIMS KW - ICP-MS KW - Analytical accuracy KW - Mass spectrometry PY - 2010 DO - https://doi.org/10.1016/j.foodchem.2010.01.019 SN - 0308-8146 VL - 121 IS - 3 SP - 918 EP - 921 PB - Elsevier CY - Amsterdam [u.a.] ; Jena AN - OPUS4-21325 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Authentication of bell peppers using boron and strontium isotope compositions T2 - European Geosciences Union, General Assembly 2010 CY - Vienna, Austria DA - 2010-05-02 PY - 2010 AN - OPUS4-21541 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Boron isotopes - a new tracer for the origin and authenticity of food T2 - DGMS-Jahrestagung CY - Konstanz, Germany DA - 2009-03-08 PY - 2009 AN - OPUS4-19134 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Voerkelius, S. T1 - Boron isotope compositions of crop plants: A new tracer for the origin and authenticity of food T2 - TRACE 5th Annual Meeting and Conference CY - Freising, Germany DA - 2009-04-01 KW - Boron isotopes in food KW - Provenance studies KW - Reference materials KW - Analytical uncertainty PY - 2009 IS - Session A / Part I SP - 1 EP - 2 AN - OPUS4-20293 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Three new offset delta-11-B isotope reference materials T2 - 22. ICP-MS Anwendertreffen CY - Berlin, Germany DA - 2010-09-06 PY - 2010 AN - OPUS4-22565 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen A1 - Rosner, Martin A1 - Pritzkow, Wolfgang T1 - Development and validation of a single collector SF-ICPMS procedure for the determination of boron isotope ratios in water and food samples N2 - Boron isotope studies on technical materials and geological and environmental samples are one hot topic in nowadays isotope research. Provenance studies of artefacts, food and other products might become another one, as several recent studies demonstrate. Typically boron isotope determinations have been carried out by TIMS. To open up this research field to a broader scientific community we developed two analytical procedures for boron isotope determinations based on single collector SF-ICPMS combined with a sample preparation procedure consisting of dry-ashing and a three step ion chromatographic boron-matrix separation. The developed procedures consist of one low resolution (LR) and one medium resolution (MR) procedure. The repeatability for the δ11B determination in three independently measured aliquots lies between 0.2 and 0.8‰ for the LR procedure and between 0.3 and 1.5‰ for the MR procedure. The expanded uncertainties with a coverage factor of k=2 range between 1.4 and 1.6‰ for the LR procedure and between 2.9 and 3.2‰ for the MR procedure. The accuracy, expressed as average deviation from the reference values, is 0.43‰ for the LR procedure and 0.33‰ for the MR procedure. To test the practicability of the procedures the matrix tolerance has been investigated as well and was found to be up to 2 mg kg-1 of alkaline and alkaline earth elements in the final measurement solution containing 100 µg kg-1 boron. Thus a highly efficient matrix separation for SF-ICPMS boron isotope determinations is required, similar to TIMS. PY - 2011 DO - https://doi.org/10.1039/c0ja00220h SN - 0267-9477 SN - 1364-5544 VL - 26 IS - 4 SP - 861 EP - 869 PB - Royal Society of Chemistry CY - London AN - OPUS4-23419 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gabitov, R.I. A1 - Schmitt, A.K. A1 - Rosner, Martin A1 - McKeegan, K.D. A1 - Gaetani, G.A. A1 - Cohen, A.L. A1 - Watson, E.B. A1 - Harrison, T.M. T1 - In situ delta7Li, Li/Ca, and Mg/Ca analyses of synthetic aragonites N2 - In situ secondary ion mass spectrometry (SIMS) analyses of δ7Li, Li/Ca, and Mg/Ca were performed on five synthetic aragonite samples precipitated from seawater at 25°C at different rates. The compositions of δ7Li in bulk aragonites and experimental fluids were measured by multicollector inductively coupled plasma–mass spectrometry (MC-ICP-MS). Both techniques yielded similar δ7Li in aragonite when SIMS analyses were corrected to calcium carbonate reference materials. Fractionation factors α7Li/6Li range from 0.9895 to 0.9923, which translates to a fractionation between aragonite and fluid from -10.5‰ to -7.7‰. The within-sample δ7Li range determined by SIMS is up to 27‰, exceeding the difference between bulk δ7Li analyses of different aragonite precipitates. Moreover, the centers of aragonite hemispherical bundles (spherulites) are enriched in Li/Ca and Mg/Ca relative to spherulite fibers by up to factors of 2 and 8, respectively. The Li/Ca and Mg/Ca ratios of spherulite fibers increase with aragonite precipitation rate. These results suggest that precipitation rate is a potentially important consideration when using Li isotopes and elemental ratios in natural carbonates as a proxy for seawater composition and temperature. KW - Lithium KW - Isotope KW - Aragonite KW - Rate KW - SIMS KW - Magnesium PY - 2011 DO - https://doi.org/10.1029/2010GC003322 SN - 1525-2027 VL - 12 IS - 3 (Technical Brief) SP - 1 EP - 16 CY - Washington, DC, USA AN - OPUS4-23312 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosner, Martin A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Voerkelius, S. T1 - Development and validation of a method to determine the boron isotopic composition of crop plants N2 - We present a comprehensive chemical and mass spectrometric method to determine boron isotopic compositions of plant tissue. The method including dry ashing, a three-step ion chromatographic boron–matrix separation, and 11B/10B isotope ratio determinations using the Cs2BO2+ graphite technique has been validated using certified reference and quality control materials. The developed method is capable to determine δ11B values in plant tissue down to boron concentrations of 1 mg/kg with an expanded uncertainty of ≤1.7‰ (k = 2). The determined δ11B values reveal an enormous isotopic range of boron in plant tissues covering three-quarters of the natural terrestrial occurring variation in the boron isotopic composition. As the local environment and anthropogenic activity mainly control the boron intake of plants, the boron isotopic composition of plants can be used for food provenance studies. KW - Boron isotope variations KW - Delta-scale KW - Stable isotopes KW - Isotope reference materials KW - Provenance KW - Authenticity PY - 2011 DO - https://doi.org/10.1021/ac102836h SN - 0003-2700 SN - 1520-6882 VL - 83 IS - 7 SP - 2562 EP - 2568 PB - American Chemical Society CY - Washington, DC AN - OPUS4-23495 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Borisotopie: Ein potentieller Tracer für die Herkunft von Lebensmitteln T2 - 21. ICP-MS Anwendertreffen und 8. Symposium über Massenspektrometrische Verfahren der Elementspurenanalyse CY - Dresden, Germany DA - 2009-09-17 PY - 2009 AN - OPUS4-20433 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Boron isotope compositions of crop plants: A new tracer for the origin and authenticity of food T2 - TRACE 5th annual meeting and conference - TRACE in practice - New methods and systems for confirming the origin of food; including Isotope ratio mass spectrometry (IRMS)-workshop CY - Freising, Germany DA - 2009-04-01 PY - 2009 AN - OPUS4-20435 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Boron isotope Composition of Crop Plants T2 - Goldschmidt™2009 CY - Davos, Switzerland DA - 2009-06-21 PY - 2009 AN - OPUS4-20525 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin T1 - Boron isotope compositions of crop plants: A new tracer for the origin and authenticity of food T2 - TRACE 5th annual meeting and conference - TRACE in practice CY - Freising, Germany DA - 2009-04-01 PY - 2009 AN - OPUS4-20643 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin A1 - Peucker-Ehrenbrink, B. A1 - Bach, W. T1 - Osmium isotope and PGE variations in oceanic core complexes: Atlantis Massif, a typical crustal section formed at a MAR T2 - Jahrestagung Deutsche Mineralogische Gesellschaft 2008 CY - Berlin, Deutschland DA - 2008-09-14 KW - Oceanic core complexes KW - Atlantis Massif KW - Osmium isotopes PY - 2008 SP - 1 CY - Berlin AN - OPUS4-20784 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen T1 - Boron isotope compositions of food: A potential tool for food authentication T2 - Jahrestagung Deutsche Mineralogische Gesellschaft 2008 CY - Berlin, Deutschland DA - 2008-09-14 KW - Boron isotopes KW - Food KW - Provenance studies PY - 2008 SP - 1 CY - Berlin AN - OPUS4-20785 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosner, Martin A1 - Wiedenbeck, M. A1 - Ludwig, T. T1 - Determination of true boron isotope compositions of silicate glasses by SIMS: NIST SRM glasses and composition-induced variations in SIMS instrumental mass fractionation T2 - Jahrestagung Deutsche Mineralogische Gesellschaft 2008 CY - Berlin, Deutschland DA - 2008-09-14 KW - SIMS KW - Boron isotopes KW - Instrumental mass bias PY - 2008 SP - 1 CY - Berlin AN - OPUS4-20786 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -