TY - CONF A1 - Altmann, Korinna T1 - Stakeholder Workshop – Plastictrace WP1 N2 - The talk is about WP1 in the PlasticTrace project funded by Euromat. The projects harmonizes microplastic analysis by developing SOPs and reference materials. WP1 is responsible for material selection and preparation. All particles are homogeneity and stability checked according to ISO guide 35. T2 - Stakeholder workshop of PlasticTrace project CY - Online meeting DA - 14.12.2022 KW - Microplastic KW - Microplastics standardisation KW - Reference materials PY - 2022 AN - OPUS4-56772 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Waniek, Tassilo A1 - Altmann, Korinna T1 - MNP test and reference material production N2 - Reference materials are essential to analyze the impact of micro- and nanoplastics. The particle size D50 has been chosen as property of interest. They can be produced top-down by milling. For size separation down to a particle size D50 of 50 µm sieving is suitable while smaller particle sizes can be obtained by filtration. After production it is important to control the stability because microplastic in the size range below 10 µm tend to agglomerate. T2 - CUSP early-stage researchers meeting CY - Online meeting DA - 08.11.2022 KW - Particale size KW - Microplastic KW - Reference material KW - Cryo milling KW - Polymer PY - 2022 AN - OPUS4-56214 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Waniek, Tassilo A1 - Crasselt, Claudia A1 - Altmann, Korinna T1 - The practical implementation of MP reference material production according to ISO standards N2 - Micro- and nanoplastic particles became a topic of public concern all over the world e.g. in water, soil, sludge and air. For a profound risk assessment, it is necessary to identify the origins, hotspots, or transport between different media. Therefore, a representative repeatable analysis is required and reference materials (RM) to proof and compare methods. The basis of MNP investigations is a harmonized analysis which includes sampling, sample preparation and detection. In recent years, spectroscopic methods like µRaman and µFTIR for the determination of particle numbers or thermoanalytical methods like Pyrolysis gas chromatography/mass spectrometry (py-GC/MS) and Thermo extraction/ desorption gas chromatography / mass spectrometry (TED-GC/MS) for mass determination have proven to be particularly suitable. The technical committees (TC) of ISO TC 61 “plastics” and TC 147 “water quality" are working on harmonisation processes on international level. For all standardization approaches, it is necessary that the detection methods and analysis processes can be validated. Therefore, BAM develops reference material for microplastic (MP) analysis for several years with focus on the most common polymers PE, PP, PS, PET and PA. MP particles with a close to reality fragment shape are obtained by cryomilling and sieving. For sample preparation purposes with mass detection methods MP particles are pressed into pills with a water-soluble matrix. Thereby losses due to sample preparation e.g. filtration are included in the verification of an analysis. To ensure a constant quality throughout all MP RM batches the homogeneity and stability is controlled according to ISO Guide 35. Next to TED-GC/MS measurements particle size distribution, infrared spectroscopy and differential scanning calorimetry spectra are taken as accompanying parameters. This presentation aims to introduce into the MP RM production process with ensured quality and special focus on pointing out customized setups for particle comminution, separation, and characterization for standardization. T2 - ASTM Syposioum on Microplastic Analytical and Reference Standards - Opportunities to Advance Microplastic Science CY - Seattle, WA, USA DA - 30.06.2022 KW - Microplastic KW - Reference material KW - Cryo milling KW - Polymer PY - 2022 AN - OPUS4-55891 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lukas, M. A1 - Kittner, Maria A1 - Altmann, Korinna A1 - Kremer, T. A1 - Kochmann, R. A1 - Isernhinke, L. A1 - Braun, U. T1 - Artificial plastic aging as a framework for microplastics ecotoxicity evaluation N2 - Microplastics are widely distributed in aquatic and terrestrial environments, up to now less is known on toxicological impacts under realistic conditions. Research so far has focused mainly on the impacts on organisms by fresh plastic fragments or beats. However, plastic materials found in the environment are mainly a mixture of different polymers and additives and particularly degraded during aging processes. Although especially oxidized degradation products might escape from plastic materials during aging, there is a lack of information on potentially adverse effects on aquatic biota. The latter is of particular interest as oxidized chemicals become more water soluble due to higher polarity and are more bio-available, therefore. The present study focused on plastic leachates of polystyrene (PS) and polylactic acid (PLA), which were derived from alternating stress by hydrolysis and UV radiation. Test specimen of PS, PLA or PS/PLA blends (each 50 %) were alternatingly maintained in water at 45 °C for five days and UV radiated at 45 °C for two days, for in total six weeks. Ecotoxicological effects of potentially generated degradation products of plastic materials in the storage water (mineral water, pH: 7.2) were detected by algae growth inhibition tests with Desmodesmus suspicatus and photosystem II inhibition tests with Raphidocelis subcapitata. Results clearly indicate inhibitory effects on algae growth by contaminants in the storage water of stressed plastic materials with increasing growth inhibition of proceeding hydrolysis and UV stress times. Here, different plastics cause variable responses of algal growth. First chemical analyses indicate dissolved monomers and their oxidation products of plastic materials as possible driver of detected ecotoxicological effects, since detected microplastic particles do not seem to harm algae. The existing data highlight the relevance of plastic aging as a framework for microplastic ecotoxicity evaluation and allow a proof of concept. T2 - 37. DGL-Tagung, Universität Konstanz CY - Konstanz, Germany DA - 19.09.2022 KW - Microplastic KW - Ecotoxicity PY - 2022 AN - OPUS4-55870 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Materials N2 - The talk is a summary of materials and challenges recognized in the CUSP Cluster. T2 - CUSP Annual Meeting at JRC (ISPRA) CY - Ispra, Italy DA - 08.06.2022 KW - Microplastic KW - CUSP KW - H2020 PY - 2022 AN - OPUS4-55099 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna A1 - Ciornii, Dmitri A1 - Hodoroaba, Vasile-Dan A1 - Braun, U. T1 - Requirements for inter-lab comparison studies and cooperation with CUSP and JRC N2 - Results from different methods applied to micro- and nanoplastics (MNPs) analysis show that there are large gaps in harmonisation with respect to terminology, size classes, sample preparation protocols and, finally, to the comparability of the measurands and descriptors. Within the European research cluster to understand the health impacts of micro- and nanoplastics (CUSP) working group WG3-Inter-Laboratory Comparisons an overview of the existing detection methods revealing advantages and disadvantages regarding the analytical tasks is being compiled. There is a clear need to develop high class characterized reference materials for MNPs in the size ranges of 100-10 µm and smaller than 10 µm, so that these can be used to validate methods and to make results comparable. Inter-laboratory comparisons (ILCs) on model samples with complex matrices regarding mass, or water samples for number-based methods, will help us to advance the process of harmonization as well as to train users early in process of developing new methods. We plan to keep all five CUSP projects well-connected also with the 'outside' MNP projects and ILCs and to extract the optimum of needs, capabilities, and efforts in order to launch new VAMAS ILCs which should expand already available ones. T2 - CUSP Meeting and General Assembly of PlasticsFatE CY - Online meeting DA - 13.12.2021 KW - CUSP KW - Microplastic KW - Inter-lab comparison KW - VAMAS KW - Reference materials PY - 2021 UR - https://cusp-research.eu/about/ AN - OPUS4-54036 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna A1 - Uzunlu, Büsra A1 - Ciornii, Dmitri A1 - Hodoroaba, Vasile-Dan A1 - Waniek, Tassilo T1 - Update – Milling and weathering of granules N2 - The talk aims to describe the production of microplastic particles as test material and the additional weathering for aged particles. T2 - PlasticsFate meeting CY - Online meeting DA - 12.11.2021 KW - Microplastic KW - Cryo milling KW - Aged particles PY - 2021 AN - OPUS4-53737 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Microplastics at BAM: TED-GC/MS and reference materials N2 - Thsi talk aims to present the activities of microplastic analysis at BAM according to TED-GC/MS and reference materials developement. T2 - Webinar BAM / University of Birmingham CY - Online meeting DA - 15.06.2021 KW - Microplastic KW - TED-GC/MS KW - Reference materials PY - 2021 AN - OPUS4-53738 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna A1 - Sturm, Heinz A1 - Fischer, D. A1 - Fischer, F. A1 - Ivleva, N. A1 - Witzig, C. A1 - Zumbülte, N. A1 - Braun, U. T1 - Results of the Plastic in the environment comparative test N2 - The talk describes the sturcture and the results of the "plastics in the environment" comparative test of 2019. T2 - Symposium "Challenges of microplastic analysis – Bridging state of the art and policy needs” CY - Online meeting DA - 09.09.2021 KW - Microplastic KW - Comparative test KW - ILC PY - 2021 AN - OPUS4-53236 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eisentraut, Paul A1 - Braun, U. A1 - Altmann, Korinna T1 - Fast quantitative detection of microplastics using TED-GC/MS, an innovative thermoanalytical method N2 - Im Vortrag wird die BAM vorgestellt und die Motivation für Engagement im Feld der Mikroplastikanalysen dargelegt. Die Herausforderungen bei der Analyse werden aufgezeigt und der Umgang mit ihnen. Das Arbeitsprinzip der TED-GC/MS sowie Leistungsparameter werden erläutert sowie das Vorgehen zur Identifikation und Quantifizierung von Polymeren in er Umwelt. An ausgewählten Beispielen werden interessante Ergebnisse präsentiert und die Mikroplastikreferenzmaterialien der BAM vorgestellt. N2 - In the talk, the BAM is introduced and the motivation for our engagement in the field of microplastic analysis is explained. The challenges in the analysis of microplastics are shown and how we deal with them. The working principle of TED-GC/MS and its performance parameters are presented, as well as the procedure for identifying and quantifying polymers in environmental samples. Interesting results are shown using selected examples. Finally, BAM's microplastic reference materials are highlighted. T2 - National Environmental Monitoring Conference CY - Online meeting DA - 02.08.2021 KW - Microplastic KW - TED-GC/MS KW - Environmental analysis PY - 2021 AN - OPUS4-53081 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -