TY - JOUR A1 - Pritzkow, Wolfgang A1 - Wunderli, S. A1 - Vogl, Jochen A1 - Fortunato, G. T1 - The isotope abundances and the atomic weight of cadmium by a metrological approach N2 - Gravimetric synthetic mixtures of seven enriched, purified cadmium isotope materials were used to determine the correction factors for mass fractionation (MC-TIMS) and mass discrimination (MC-ICP-MS). The isotope abundance ratios determined for various natural cadmium materials represents the isotope composition for natural cadmium materials. Correction of the isotope abundance ratios observed yielded isotope abundances of 106Cd 0.012450(8), 108Cd 0.008884(4), 110Cd 0.124846(16), 111Cd 0.127955(14), 112Cd 0.241110(38), 113Cd 0.122254(22), 114Cd 0.287439(60) and 116Cd 0.075183(32). The newly determined atomic weight of natural cadmium based on SI-traceable evaluation of the isotope abundance ratios is 112.41384(18). The cadmium material designated in the paper as Cd-2211 can be used as an isotope reference material with a δ(114Cd/110Cd)-value of 0‰. The results obtained show that the uncertainties for the isotope abundances and the atomic weight given as IUPAC values for cadmium are overestimated. KW - Atomic weight KW - Isotope abundance KW - Isotopic composition KW - Cadmium PY - 2007 SN - 0168-1176 SN - 0020-7381 SN - 1387-3806 SN - 1873-2798 VL - 261 IS - 1 SP - 74 EP - 85 PB - Elsevier CY - Amsterdam AN - OPUS4-14543 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gloede, J. A1 - Ozegowski, S. A1 - Keitel, I. A1 - Buttge, K. A1 - Gruner, M. A1 - Costisella, B. A1 - Pritzkow, Wolfgang A1 - Stephan, H. A1 - Bartoschek, M. T1 - Zweifach und dreifach intramolekular verbrückte p-tert-Butylcalix[8]aren-triphosphate - Synthese, Struktur und Stereochemie [1] N2 - The phosphorylation of p-tert-butylcalix[8]arene (1) with phosphorus pentachloride and hydrolysis gives intramolecular bridging tert-butylcalix[8]arene triphosphates. The reactivity (esterification, dehydratisation, complexation), the structure (nmr and x-ray), and the stereochemical behaviour of the phosphates will be discussed. KW - Calix[8]arenes KW - Phosphates KW - Heterocycles KW - Stereochemistry PY - 2006 DO - https://doi.org/10.1002/zaac.200500203 SN - 0044-2313 SN - 1521-3749 SN - 0372-7874 SN - 0863-1786 SN - 0863-1778 VL - 632 IS - 1 SP - 123 EP - 132 PB - Wiley-VCH CY - Weinheim AN - OPUS4-13201 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Riebe, Gundel A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen T1 - Schwermetallbestimmung im Boden KW - Königswasserextraktion KW - Bodenanalyse KW - Schwermetallbestimmung KW - Unsicherheitsvergleiche PY - 2006 SN - 0016-3538 IS - 8 SP - 688 EP - 690 PB - GIT-Verlag CY - Darmstadt AN - OPUS4-13725 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Knobbe, N. A1 - Vogl, Jochen A1 - Pritzkow, Wolfgang A1 - Panne, Ulrich A1 - Fry, H. A1 - Lochotzke, H.M. A1 - Preiss-Weigert, A. T1 - C and N stable isotope variation in urine and milk of cattle depending on the diet N2 - The stable carbon and nitrogen isotopic composition of urine and milk samples from cattle under different feeding regimes were analysed over a period of six months. The isotope ratios were measured with isotope ratio mass spectrometry (IRMS). The δ13C values of milk and urine were dependent on different feeding regimes based on C3 or C4 plants. The δ13C values are more negative under grass feeding than under maize feeding. The δ13C values of milk are more negative compared to urine and independent of the feeding regime. Under grass feeding the analysed milk and urine samples are enriched in 13C relative to the feed, whereas under maize feeding the 13C/12C ratio of urine is in the same range and milk is depleted in 13C relative to the diet. The difference between the 15N/14N ratios for the two feeding regimes is less pronounced than the 13C/12C ratios. The δ15N values in urine require more time to reach the new equilibrium, whereas the milk samples show no significant differences between the two feeding regimes. KW - Cattle KW - Urine KW - Milk KW - Feeding regime KW - Stable isotope PY - 2006 DO - https://doi.org/10.1007/s00216-006-0644-6 SN - 1618-2642 SN - 1618-2650 VL - 386 IS - 1 SP - 104 EP - 108 PB - Springer CY - Berlin AN - OPUS4-12746 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Köppen, Robert A1 - Ostermann, Markus T1 - Determination of sulfur isotope abundance ratios for SI-traceable low sulfur concentration measurements in fossil fuels by ID-TIMS N2 - The present work describes the development of an existing TIMS procedure to a reference procedure for low sulfur concentration measurements in fossil fuels. With this enhanced procedure SI-traceable sulfur mass fractions below 10 mg kg-1 can be obtained. The achieved detection limit is approximately 0.2 mg kg-1. The procedure was validated by certified reference materials. The procedure was already applied to candidate reference materials and to samples analysed within projects of the “Comité Consultatif pour la Quantité de Matière – CCQM”. Additionally the influence of the isotopic composition on the results and its corresponding uncertainty was studied. Reference data published in the literature on the isotopic composition of sulfur were assessed. KW - TIMS KW - IDMS KW - Low sulfur KW - Fossil fuel KW - Reference procedure PY - 2005 DO - https://doi.org/10.1016/j.ijms.2004.10.024 SN - 0168-1176 SN - 0020-7381 SN - 1387-3806 SN - 1873-2798 VL - 242 SP - 309 EP - 318 PB - Elsevier CY - Amsterdam AN - OPUS4-7222 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen A1 - Pritzkow, Wolfgang A1 - Klingbeil, Patrick T1 - The need for new SI-traceable magnesium isotopic reference materials KW - Isotopic Reference Material KW - Multi-collector ICP-MS KW - Isotopic abundance variations KW - Primary Isotopic Reference Material KW - Magnesium PY - 2004 DO - https://doi.org/10.1007/s00216-004-2859-8 SN - 1618-2642 SN - 1618-2650 VL - 380 SP - 876 EP - 879 PB - Springer CY - Berlin AN - OPUS4-6904 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Riebe, Gundel T1 - A comparative study in the field of soil analysis T2 - 2. Symposium " Trends in sample preparation" CY - Seggauberg, Austria DA - 2004-07-04 PY - 2004 AN - OPUS4-5054 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bohn, T. A1 - Walczyk, Th. A1 - Davidsson, L. A1 - Pritzkow, Wolfgang A1 - Klingbeil, Patrick A1 - Vogl, Jochen A1 - Hurrell, R.F. T1 - Comparison of urinary monitoring, faecal monitoring and erythrocyte analysis of stable isotope labels to determine magnesium absorption in human subjects KW - Magnesium absorption KW - Stable isotopes KW - Faecal monitoring KW - Urinary monitoring KW - Erythrocytes PY - 2004 SN - 0007-1145 SN - 1475-2662 VL - 58 SP - 113 EP - 120 PB - CABI Publ. CY - Wallingford AN - OPUS4-3362 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wunderli, S. A1 - Fortunato, G. A1 - Vogl, Jochen A1 - Pritzkow, Wolfgang T1 - Meterology of determination for a new cadmium atomic weight and metrological application to cadmium in rice using MC-ICP-MS KW - Atomic weight KW - Isotope KW - MC-ICP-MS KW - Cadmium KW - Determination of metrology of new cadmium atomic weight KW - Mass spectrometry KW - Review KW - Multicollector inductively coupled plasma mass spectrometry PY - 2003 SN - 1004-2997 VL - 24 IS - 4 SP - 467 EP - 470 CY - Beijing AN - OPUS4-31076 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Ostermann, Markus A1 - Wunderli, S. A1 - Fortunato, G. T1 - Neue, verbesserte und SI-rückgeführte Atomgewichtsbestimmung von Cd mit MC-TIMS und MC-IPC-MS T2 - 6. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse / 18. ICP-MS Anwendertreffen CY - Berlin, Germany DA - 2003-10-06 PY - 2003 AN - OPUS4-4930 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Ostermann, Markus A1 - Taylor, P.D.P. T1 - Measurement of Isotopic Composition of Elements (MICE) - a new interlaboratory comparison T2 - 6. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse / 18. ICP-MS Anwendertreffen CY - Berlin, Germany DA - 2003-10-06 PY - 2003 AN - OPUS4-4932 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen A1 - Klingbeil, Patrick A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel T1 - High accuracy measurements of Fe isotopes using hexapole collision cell MC-ICP-MS and isotope dilution for certification of reference materials N2 - An ICP-MS equipped with collision cell, sector field and multi-collector technology has been applied to developing analytical procedures for Fe in terms of isotope ratio measurements and isotope dilution analysis. Therefore a detailed study on the reduction of molecular interferences by a variety of collision gases (He, Ar, Kr, H2, D2 and N2) was performed. The efficiency of the reduction has been checked by high resolution mass scans. The argon based interferences disturbing the determination of 54Fe and 56Fe could be completely removed when using Faraday detectors. The interferences on mass 57 could be reduced to a level which enables accurate measurements. Also, the 40Ar12C interference, which disturbs the chromium correction, could be completely removed. Reproducibilities of 0.01% could be reached for 54Fe/56Fe isotope ratios and 0.02% for 57Fe/56Fe isotope ratios. Under these measurement conditions a sensitivity of 1.2 V per 50 µg kg–1 Fe is available. This corresponds to 1.5 × 109 cps per mg kg–1. Based on these results highly accurate procedures for Fe isotope ratio determinations were set up, reaching a performance level superior to that of other ICP-MS instruments. Consequently, IDMS procedures were developed on this basis in order to perform certification measurements at the highest metrological level. The first application was the contribution to the Fe reference value by IMEP-12, an interlaboratory comparison with approximately 350 participants worldwide. The analysed Fe mass content is 0.2150 mg kg–1 with its expanded uncertainty (k= 2) of 0.0012 mg kg–1(0.56%), which is ten times less than the uncertainty of the second certification laboratory. Another application was the certification campaign of the two reference materials Tea Leaves and Polish Herbs. The results obtained with the ICP-MS procedure, 542 ± 11 mg kg–1 and 543 ± 12 mg kg–1, were compared with the results analysed by TIMS, 541 ± 12 mg kg–1 and 541 ± 13 mg kg–1, and agree very well within the stated uncertainties (k= 2). The results presented demonstrate quite well the suitability of the developed IDMS procedures for certification or reference measurements. PY - 2003 DO - https://doi.org/10.1039/b301812a SN - 0267-9477 SN - 1364-5544 VL - 18 SP - 1125 EP - 1132 PB - Royal Society of Chemistry CY - London AN - OPUS4-2739 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pritzkow, Wolfgang A1 - Klingbeil, Patrick T1 - Messtechnik T2 - 1. Workshop "Isotopenverdünnungsanalyse mit ICP-MS" CY - Berlin, Germany DA - 2002-11-11 PY - 2002 AN - OPUS4-2989 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ecker, Klaus A1 - Wätjen, U. A1 - Berger, Achim A1 - Persson, L. A1 - Pritzkow, Wolfgang A1 - Radtke, Martin A1 - Riesemeier, Heinrich T1 - RBS, SY-XRF, INAA and ICP-IDMS of antimony implanted in silicon - A multi-method approach to characterize and certify a reference material N2 - A layer of Sb atoms, implanted with an energy of 400 keV and a nominal dose of 5×1016 atoms/cm2 into a high purity silicon wafer, was certified for its areal density (atoms/cm2) using Rutherford backscattering spectrometry (RBS), instrumental neutron activation analysis (INAA) and inductively coupled plasma isotope dilution mass spectrometry (ICP-IDMS) and for its isotope ratio using INAA and ICP-IDMS. Excellent agreement between the results of the different independent methods was found. In the present work, the measurements of the homogeneity of the areal density of Sb, previously determined with RBS in spots having 1 mm diameter, are improved with synchrotron X-ray fluorescence analysis: Higher precision in even smaller sample spots allows to estimate a reduced inhomogeneity of the whole batch of samples of the order of only 0.4%. Thus the uncertainty of the certified value can further be reduced. Down to fractions of a chip with 0.3×0.4 mm2 area, the areal density is now certified as (4.81±0.06)×1016 Sb atoms/cm2, where the expanded uncertainty 0.06 (coverage factor k=2) corresponds to only 1.2%. The relative merits of the different analytical methods are discussed. KW - Certified reference material KW - RBS KW - INAA KW - ICP-IDMS KW - XRF KW - SY-XRF PY - 2002 DO - https://doi.org/10.1016/S0168-583X(01)01038-2 SN - 0168-583X SN - 1872-9584 VL - 188 IS - 1-4 SP - 120 EP - 125 PB - Elsevier CY - Amsterdam AN - OPUS4-13870 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dudek, Gabriele A1 - Alber, D. A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel A1 - Vogl, Jochen A1 - Görner, Wolf T1 - Determination of the beta- branching ratio of 64Cu by mass spectrometric investigations of the decay products in neutron transmuted copper N2 - The ?- branching ratio of 64Cu was determined by investigating the resulting decay products in copper doped by neutron transmutation. The numbers of 64Zn and 64Ni atoms were analyzed using isotope dilution analysis combined with thermal ionization mass spectrometry. A ?- branching ratio of (38.06±0.30)% was obtained, which agrees with the study of Kawada (Appl. Radiat. Isot. 37 (1) (1986) 7) to a higher accuracy. However, our result differs from the value cited in the NUDAT database of (39.0±0.3)%. KW - NTD KW - Copper KW - Zinc KW - Nickel KW - Branching ratio KW - Cu-64 KW - TIMS KW - IDMS KW - Isotope dilution KW - Thermal ionization mass spectrometry KW - Neutron transmutation doping PY - 2002 DO - https://doi.org/10.1016/S0969-8043(01)00180-4 SN - 0883-2889 SN - 0969-8043 N1 - Geburtsname von Dudek, Gabriele: Wermann, G. - Birth name of Dudek, Gabriele: Wermann, G. VL - 56 SP - 145 EP - 151 PB - Elsevier CY - Amsterdam AN - OPUS4-7221 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Riebe, Gundel A1 - Ostermann, Markus A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen T1 - Combination of sophisticated sample digestion methods and highly accurate determination procedures shown for Sulphur in oil and Cadmium and Lead in sediment T2 - Internationale Konferenz "Trends in Sample Preparation 2002" CY - Seggau, Austria DA - 2002-06-30 PY - 2002 AN - OPUS4-1398 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dudek, Gabriele A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel A1 - Görner, Wolf A1 - Alber, D. T1 - Characterization of neutron transmuted zinc traces in pure copper materials by isotope dilution mass spectrometry N2 - The neutron transmutation doping (NTD) of highly pure copper with zinc was investigated as a promising means of achieving controlled gradation of the zinc content in the range 1-20 wg g-1. The doping process leads to the enrichment of two stable isotopes 64Zn and 66Zn in a ratio which differs from that of natural isotopic distribution. Mass spectrometric investigations by thermal ionization mass spectrometry (TIMS) were performed to validate the results obtained by gamma spectrometry. The investigations included both determination of the isotopic ratios of the doped zinc isotopes and the analysis of the accumulated zinc contents by isotope dilution (ID) analysis. Thereby a sample-specific correction of the blank could be performed because the isotope 68Zn was not influenced, because of the transmutation process. The results obtained by TIMS prove the strict proportionality of the doped zinc content, in the range 5 to 20 wg g-1, to the neutron fluence. Comparison with gamma spectrometric results showed a very good agreement within the uncertainties. PY - 2001 DO - https://doi.org/10.1007/s002160100784 SN - 0937-0633 N1 - Geburtsname von Dudek, Gabriele: Wermann, G. - Birth name of Dudek, Gabriele: Wermann, G. VL - 370 IS - 5 SP - 606 EP - 611 PB - Springer CY - Berlin AN - OPUS4-1145 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bannert, Manfred A1 - Berger, Wolfgang A1 - Fischer, Hildegard A1 - Horchler, Dieter A1 - Keese, Klaus A1 - Lehnik-Habrink, Petra A1 - Lück, Detlef A1 - Pritzkow, Joachim A1 - Win, Tin T1 - Amts- und Mitteilungsblatt, Band 31, Sonderheft 2: Anforderungen an Probennahme, Probenvorbehandlung und chemische Untersuchungsmethoden auf Bundesliegenschaften N2 - Zur Umsetzung der Verwaltungsvereinbarung der OFD Hannover und der Bundesanstalt für Materialforschung und -prüfung (BAM) über "Anerkennung und Überwachung von Prüflaboratorien im Rahmen von Erkundung und Bewertung kontaminierter Flächen" (15. Sept. 1995) wurde eigens ein "Arbeitskreis Anerkennungsgrundlagen Altlasten" einberufen, dem neben der BAM und der OFD Hannover die am Verfahren beteiligten Akkreditierungsgesellschaften DACH, DAP und DASMIN, die Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), das Umweltbundesamt (UBA), die Landesgewerbeanstalt Bayern (LGA), der TÜV Hannover/Sachsen-Anhalt und der Verband Deutscher Umweltlaboratorien sowie vereidigte Sachverständige und private Prüflaboratorien angehörten. Aufgabe dieses Arbeitskreises war es, "Anforderungen an Untersuchungsmethoden zur Erkundung und Bewertung kontaminationsverdächtiger/kontaminierter Flächen und Standorte auf Bundesliegenschaften" als Grundlage der Kompetenzbestätigungsverfahren zu erarbeiten. Mit Stand Februar 1997 wurden diese veröffentlicht (OFD-H/BAM Anforderungskatalog 02/97), im Juni 1998 aktualisiert und auf der Umwelt-CO-ROM des Bundesministeriums für Raumordnung, Bau- und Wohnungswesen (BMBau) als Anhang 2.5 der "Arbeitshilfen Altlasten" bekanntgemacht. Mit dem Erlass des BMBau vom 07.11.1995 wurden alle Bau- und Vermögensabteilungen der Oberfinanzdirektionen angewiesen, Aufträge zur Untersuchung kontaminationsverdächtiger/kontaminierter Flächen (KVF/KF) nur noch an Unternehmen zu vergeben, die nach diesem Verfahren anerkannt sind. Die oben genannten Anforderungen wurden 1998 bei der Formulierung des Anhanges 1 ("Anforderungen an die Probennahme, Analytik und Qualitätssicherung bei der Untersuchung") der Bundes-Bodenschutz- und Altlastenverordnung (BBodSchV) berücksichtigt. Mit Inkraftsetzung des Bundes-Bodenschutzgesetzes (BBodSchG) am 17.03.1998 und der BBodSchV am 12.07.1999 liegen nunmehr bundeseinheitliche gesetzliche Regelungen vor, die bei Bodenuntersuchungen sowie bei der Bearbeitung von Verdachtsflächen anzuwenden sind. Da der Anhang 1 der BBodSchV aber nicht allein für den Zuständigkeitsbereich des Bundesministeriums für Verkehr, Bau- und Wohnungswesen (BMVBW) formuliert wurde, ergibt sich hier zur Vereinfachung und Vereinheitlichung des Vollzugs auf Liegenschaften des Bundes der Bedarf nach inhaltlichen Erläuterungen und Ergänzungen. Daher wurde gemeinsam von der BAM und der OFD Hannover im Rahmen der Neufassung ihrer "Verwaltungsvereinbarung zur Weiterentwicklung der wissenschaftlichen Grundlagen für die Akkreditierung und Überwachung von Prüflaboratorien/lngenieurbüros im Rahmen der Erkundung kontaminationsverdächtiger/kontaminierter Flächen auf Bundesliegenschaften und zur Durchführung von Eignungsprüfungen in der chemischen Analytik" vom 17.05.2000 die nachfolgende Neufassung "Anforderungen an Probennahme, Probenvorbehandlung und chemische Untersuchungsmethoden auf Bundesliegenschaften" erarbeitet. Diese ersetzt die Versionen vom Februar 1997 und Juni 1998. Voraussetzung für die Durchführung von Untersuchungen auf Bundesliegenschaften ist eine Akkreditierung auf der Grundlage dieser Anforderungen. In der BBodSchV sind eine Reihe internationaler Normentwürfe aufgeführt, die nicht in jedem Fall im Detail dem aktuellen Diskussions- und Kenntnisstand entsprechen. In den überarbeiteten Anforderungen werden mit Hilfe von Hinweisen und Ergänzungen Präzisierungen vorgenommen und der aktuelle Stand dokumentiert. Vom Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (BMU) wurde gemäß Anhang 1 BBodSchV ein Fachbeirat "Verfahren und Methoden für Bodenuntersuchungen (FBU)" eingerichtet, dem auch Mitarbeiter der BAM und der OFD Hannover angehören. Eine zentrale Aufgabe dieses Fachbeirates ist die Zusammenstellung und Bekanntgabe aktueller Methoden und Verfahren. Diese durch das Umweltbundesamt (UBA) vorgesehenen Veröffentlichungen sind zu beachten. Da die wesentlichen Anforderungen im Anhang 1 der BBodSchV enthalten sind, wurde zur Verbesserung der Übersichtlichkeit der Verordnungstext im folgenden wörtlich übernommen. Er ist durch Kursivdruck hervorgehoben. Teil 6 der vorliegenden Anforderungen ist in Abweichung von der BBodSchV zunächst in Normen und anschließend in Technische Regeln und sonstige Methoden gegliedert. T3 - Amts- und Mitteilungsblatt der BAM - SH 2/2001 PY - 2001 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-549344 SN - 3-89701-701-6 SN - 0938-5533 VL - 31 IS - Sonderheft 2 SP - 1 EP - 42 PB - Wirtschaftsverlag NW CY - Bremerhaven AN - OPUS4-54934 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Riebe, Gundel A1 - Klingbeil, Patrick A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen T1 - Erfahrungen mit mikrowelleninduzierten Aufschluss-Verfahren für die Elementspurenanalytik T2 - MLS-Tagesseminar CY - Berlin, Deutschland DA - 2001-03-19 PY - 2001 AN - OPUS4-1111 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pritzkow, Wolfgang A1 - Vogl, Jochen A1 - Berger, Achim A1 - Ecker, Klaus A1 - Grötzschel, R. A1 - Klingbeil, Patrick A1 - Persson, L. A1 - Riebe, Gundel A1 - Wätjen, U. T1 - Contribution of ICP-IDMS to the certification of antimony implanted in a silicon wafer - comparison with RBS and INAA results N2 - A thin-layer reference material for surface and near-surface analytical methods was produced and certified. The surface density of the implanted Sb layer was determined by Rutherford backscattering spectrometry (RBS), instrumental neutron activation analysis (INAA), and inductively coupled plasma isotope dilution mass spectrometry (ICP-IDMS) equipped with a multi-collector. The isotopic abundances of Sb (121Sb and 123Sb) were determined by multi-collector ICP-MS and INAA. ICP-IDMS measurements are discussed in detail in this paper. All methods produced values traceable to the SI and are accompanied by a complete uncertainty budget. The homogeneity of the material was measured with RBS. From these measurements the standard uncertainty due to possible inhomogeneities was estimated to be less than 0.78% for fractions of the area increments down to 0.75 mm2 in size. Excellent agreement between the results of the three different methods was found. For the surface density of implanted Sb atoms the unweighted mean value of the means of four data sets is 4.8121016 cm-2 with an expanded uncertainty (coverage factor k=2) of 0.0921016 cm-2. For the isotope amount ratio R (121Sb/123Sb) the unweighted mean value of the means of two data sets is 1.435 with an expanded uncertainty (coverage factor k=2) of 0.006. KW - ICP-MS KW - IDMS KW - Reference material KW - Surface analysis PY - 2001 DO - https://doi.org/10.1007/s002160100987 SN - 0937-0633 VL - 371 SP - 867 EP - 873 PB - Springer CY - Berlin AN - OPUS4-7220 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -