TY - JOUR A1 - Simons, C. A1 - Mans, C. A1 - Hanning, S. A1 - Janßen, A. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Ostermann, Markus A1 - Michaelis, Matthias A1 - Wienold, Julia A1 - Alber, D. A1 - Kreyenschmidt, M. T1 - Study on microscopic homogeneity of polymeric candidate reference materials BAM H001-BAM H010 by means of synchrotron µ-XRF and LA-ICP-MS N2 - In this study the microscopic homogeneity of the newly developed plastic reference materials BAM H001-BAM H010 was investigated. The materials consist of an acrylonitryle-butadien-styrene terpolymer, doped with different amounts of the elements Br, Cd, Cr, Hg and Pb. For the quantitative determination of the degree of homogeneity, a procedure proposed by Kempenaers et al. (Fresenius J. Anal. Chem., 2001, 369, 733-737) was used. On every sample an extensive number of different points were analyzed and standard deviation for every element mentioned above was used to calculate a minimal sampling mass that is necessary to reach a certain level of uncertainty caused by inhomogeneity (mmin,5%). The experiments were taken out with synchrotron µ-XRF (SR µ-XRF) at BESSYII in Berlin and by laser ablation inductively coupled plasma mass spectroscopy (LA-ICP-MS). The calculated values for mmin,5% of both techniques showed comparable results for all elements. It could be shown that the materials are suitable for calibration of micro analytic techniques if at least 64 µg are used. KW - XRF KW - LA-ICP-MS KW - RoHS KW - CRM PY - 2010 U6 - https://doi.org/10.1039/b917008a SN - 0267-9477 SN - 1364-5544 VL - 25 SP - 40 EP - 43 PB - Royal Society of Chemistry CY - London AN - OPUS4-20938 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Börno, Fabian A1 - Traub, Heike A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Lithiumboratschmelzaufschlüsse für die Spurenelementanalyse von refraktären Materialien mit Laser Ablation ICP-MS T2 - ANAKON 2011 CY - Zurich, Switzerland DA - 2011-03-22 PY - 2011 AN - OPUS4-23226 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wienold, Julia A1 - Traub, Heike A1 - Lange, Britta A1 - Giray, Thorsten A1 - Recknagel, Sebastian A1 - Kipphardt, Heinrich A1 - Matschat, Ralf A1 - Panne, Ulrich T1 - Elemental analysis of copper and magnesium alloy samples using IR-laser ablation in comparison with spark and glow discharge methods N2 - Three methods for direct solid sampling of bulk material namely IR laser ablation, glow discharge and spark OES, were compared with respect to analytical figures of merit obtained for elemental analysis with atomic spectrometry. Matrices investigated were copper, pressed doped copper powder, and magnesium alloys. For the vast majority of analytes, statistical equivalence regarding precision (usually ≤ 5%) and the performance of the calibrations between the compared methods was demonstrated. KW - LA-ICP-MS KW - GD-MS KW - Spark-OES KW - LA-ICP-OES KW - Copper KW - Magnesium PY - 2009 U6 - https://doi.org/10.1039/b903251g SN - 0267-9477 SN - 1364-5544 VL - 24 SP - 1570 EP - 1574 PB - Royal Society of Chemistry CY - London AN - OPUS4-20257 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Traub, Heike A1 - Bresch, Harald A1 - Seeger, Stefan A1 - Kipphardt, Heinrich A1 - Recknagel, Sebastian T1 - Dependency of particle size distributions, originating from IR-laser ablation, on laser paramters and materials T2 - 10th European Workshop on Laser Ablation CY - Kiel, Germany DA - 2010-06-29 PY - 2010 AN - OPUS4-21792 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wienold, Julia A1 - Traub, Heike A1 - Bresch, Harald A1 - Seeger, Stefan A1 - Recknagel, Sebastian A1 - Kipphardt, Heinrich T1 - Effort on calibration of infrared spark ablation of copper with synthetic copper standards N2 - Two types of copper samples, compact certified copper reference materials and calibration samples prepared from liquid doped, pressed copper powders, were studied in terms of accuracy of obtained calibration functions originating from infrared spark ablation. Additionally, corresponding particle size distributions of the aerosols from infrared spark ablation were recorded. It is shown that the differences in quantification results, originating from the two sets of calibration functions, could not mainly be ascribed to different particle size distributions of the two copper sample types. Possible other causes, as different ablation rates, parts of melting and differences of the chemical constitutions of the two sample types were explored. KW - Calibration KW - Spark ablation KW - Synthetic standard KW - Particle size distribution KW - Fractionation KW - Laser ablation KW - ICP-MS PY - 2011 U6 - https://doi.org/10.1016/j.sab.2011.04.005 SN - 0584-8547 SN - 0038-6987 VL - 66 IS - 6 SP - 432 EP - 438 PB - Elsevier B.V. CY - Amsterdam AN - OPUS4-24065 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wienold, Julia A1 - Recknagel, Sebastian A1 - Scharf, Holger A1 - Hoppe, Marion A1 - Michaelis, Matthias T1 - Elemental analysis of printed circuit boards considering the ROHS regulations N2 - The EU RoHS Directive (2002/95/EC of the European Parliament and of the Council) bans the placing of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants on the EU market. It necessitates methods for the evaluation of RoHS compliance of assembled electronic equipment. In this study mounted printed circuit boards from personal computers were analyzed on their content of the three elements Cd, Pb and Hg which were limited by the EU RoHS directive. Main focus of the investigations was the influence of sample pre-treatment on the precision and reproducibility of the results. The sample preparation steps used were based on the guidelines given in EN 62321. Five different types of dissolution procedures were tested on different subsequent steps of sample treatment like cutting and milling. Elemental analysis was carried out using ICP–OES, XRF and CV–AFS (Hg). The results obtained showed that for decision-making with respect to RoHS compliance a size reduction of the material to be analyzed to particles ≤1.5 mm can already be sufficient. However, to ensure analytical results with relative standard deviations of less than 20%, as recommended by the EN 62321, a much larger effort for sample processing towards smaller particle sizes might be required which strongly depends on the mass fraction of the element under investigation. KW - RoHS KW - Printed circuit boards KW - Electrotechnical products KW - Elemental composition PY - 2011 U6 - https://doi.org/10.1016/j.wasman.2010.10.002 SN - 0956-053X VL - 31 IS - 3 SP - 530 EP - 535 PB - Elsevier Ltd. CY - New York, NY AN - OPUS4-23986 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Traub, Heike A1 - Giray, Thorsten A1 - Recknagel, Sebastian A1 - Kipphardt, Heinrich A1 - Matschat, Ralf A1 - Panne, Ulrich T1 - Application of an IR laser ablation system and comparison to spark and glow discharge methods T2 - 9th European Workshop on laser ablation in elemental and isotopic analysis CY - Prague, Czech Republic DA - 2008-07-07 PY - 2008 AN - OPUS4-17546 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Recknagel, Sebastian A1 - Scharf, Holger A1 - Hoppe, Marion A1 - Kubella, Paul A1 - Panne, Ulrich T1 - Elemental analysis of printed circuit boards, with respect to different preparation steps, considering the RoHS regulations T2 - ANAKON 2009 CY - Berlin, Germany DA - 2009-03-17 PY - 2009 AN - OPUS4-19012 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Recknagel, Sebastian A1 - Forstreuter, M. T1 - Elemental Line Scans with laser ablation - ICP-MS of increment cores of fagus sylvatica from provenance trials T2 - COST Action E52: Evaluation of Beech Genetic Resources for Sustainable Forestry; 8th MC Joint Working Group Meeting CY - Sopron, Hungary DA - 2009-10-06 PY - 2009 AN - OPUS4-20376 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienold, Julia A1 - Recknagel, Sebastian A1 - Rettschlag, N. A1 - Forstreuter, M. A1 - Jakubowski, Norbert T1 - Imaging of wood anatomy, making use of a laser ablation cell designed for large samples T2 - 10th European Workshop on Laser Ablation CY - Kiel, Germany DA - 2010-06-29 PY - 2010 AN - OPUS4-21786 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -