TY - CONF A1 - Becker, Roland T1 - Hydroxylierte Derivate des Flammschutzmittels Hexabromcyclododecan: Beiträge zu Charakterisierung und Analytik in Biota T2 - ANAKON 2011 (ETH Zürich) CY - Zurich, Switzerland DA - 2011-03-22 PY - 2011 AN - OPUS4-23000 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Beobachtungen über Schädlichkeit, Fraß und Entwicklungsdauer von anobium punctatum De Geer ("Totenuhr") PY - 1942 IS - 30 SP - 602 PB - Springer CY - Berlin AN - OPUS4-17185 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther A1 - Schulze, Bruno T1 - Prüfung der insektentötenden Wirkung von Holzschutzmitteln PY - 1942 IS - 30 SP - 603 PB - Springer CY - Berlin AN - OPUS4-17199 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulze, Bruno A1 - Becker, Günther T1 - Larven von Mulmbock- und Rothalsbockkäfer zur Prüfung der insektentötenden Wirkung von Holzschutzmitteln PY - 1942 IS - 30 SP - 603 EP - 604 PB - Springer CY - Berlin AN - OPUS4-17202 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Prüfung der vorbeugenden Wirkung von Holzschutzmitteln gegen Eiablage und Eientwicklung sowie als Berührungs- und Atmungsgifte gegenüber Eilarven des Hausbockkäfers PY - 1942 IS - 30 SP - 604 PB - Springer CY - Berlin AN - OPUS4-17203 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Becker, Roland T1 - HBCD Stereosiomers: Thermal interconversion and enantiospecific trace analysis in biota T2 - DIOXIn 2008 (28th symposium on halogenated persistent organic compounds) CY - Birmingham, England DA - 2008-08-17 PY - 2008 AN - OPUS4-17664 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulze, Bruno A1 - Becker, Günther T1 - Die Prüfung der insektentötenden Wirkung von Holzschutzmitteln mittels Anobium punctatum De Geer (=A.striatum Oliv.) als Versuchstier PY - 1940 IS - 26 SP - 423 EP - 424 PB - Springer CY - Berlin AN - OPUS4-17050 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Die Prüfung der insektiziden Wirkung von Holzschutzmitteln mittels Anobium punctatum De Geer (=A. striatum Oliv.) als Versuchstier PY - 1940 IS - 26 SP - 422 PB - Springer CY - Berlin AN - OPUS4-17043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Kampf dem Hausbock! PY - 1940 IS - 26 SP - 422 EP - 423 PB - Springer CY - Berlin AN - OPUS4-17045 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Die Bohrmuschel Terdeo, der gefährlichste Holz-Zerstörer an deutschen Küsten PY - 1940 IS - 26 SP - 423 PB - Springer CY - Berlin AN - OPUS4-17048 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Zur Ernährungsphysiologie der Hausbockkäfer-Larven (Hylotrupes baiulus L.) PY - 1940 IS - 26 SP - 423 PB - Springer CY - Berlin AN - OPUS4-17049 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Der gegenwärtige Stand der Hausbockkäfer-Frage PY - 1941 IS - 27 SP - 440 PB - Springer CY - Berlin AN - OPUS4-17076 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, M. A1 - Durmaz, V. A1 - Becker, Roland A1 - Esslinger, Susanne T1 - Predictive identification of Pentabromocyclododecene (PBCD) isomers with high binding affinity to hTTR N2 - The binding affinities of the six main hexabromocyclododecane (HBCD) stereoisomers and all of their possible 48 allylic pentabromocyclododecene (PBCD) metabolites to the endocrinous human transthyretin receptor (hTTR) were investigated and compared to the natural binder thyroxine, and the two brominated diphenyl ethers BDE-47 and 3-hydroxy-BDE-47. The endocrine disrupting potency was approximated by a combination of two methods: a surface matching with the natural binder thyroxine (T4) followed by approximation of free binding energies for various binding modes within hTTR. The results indicate slightly higher binding affinities for both BDE structures than for T4 itself and similarly high affinities for two trans-configurated PBCD isomers. For many other PBCD isomers, intermediate values were computed, whereas all HBCD diastereomers yielded significantly lower binding affinities. T2 - Dioxin 2009 - 29th International symposium on halogenated persistent organic pollutants / Organohalogen compounds CY - Beijing, China DA - 2009-08-23 KW - Flammschutzmittel KW - Thyroxin KW - Molecular modeling PY - 2009 UR - http://www.dioxin20xx.org/pdfs/2009/09-54.pdf VL - 71 SP - 000247 EP - 000252 CY - Beijing, China AN - OPUS4-20980 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Esslinger, Susanne A1 - Becker, Roland A1 - Müller-Belecke, A. A1 - Jung, Christian A1 - Nehls, Irene T1 - Bioisomerization of HBCD: Results of feeding experiments with pure Gamma-HBCD enantiomers N2 - 1,2,5,6,9,10-hexabromocyclododecane (HBCD), a widely used flame retardant, is an ubiquitous contaminant in the environment. Still, only little is known about the distribution and behavior in the environment such as bioaccumulation or biotransformation of HBCD stereoisomers. In order to investigate enrichment and possible bioisomerization of HBCD stereoisomers, Mirror Carps were exposed to pure (+)- and (-)-γ-HBCD, randomly sampled after a predefined specific period and subjected to enantiomer-specific determination of α-, β-, and γ- HBCD. No evidence for the isomerization of HBCD stereoisomers was observed in Mirror Carp fillets. T2 - Dioxin 2009 - 29th International symposium on halogenated persistent organic pollutants / Organohalogen compounds CY - Beijing, China DA - 2009-08-23 PY - 2009 UR - http://www.dioxin20xx.org/pdfs/2009/09-103.pdf VL - 71 SP - 000487 EP - 000492 CY - Beijing, China AN - OPUS4-21187 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köppen, Robert A1 - Becker, Roland A1 - Esslinger, Susanne A1 - Nehls, Irene T1 - Enantiomer-specific analysis of hexabromocyclododecane in fish from Etnefjorden (Norway) N2 - High-performance liquid chromatography tandem mass spectrometry (HPLC–MS/MS) was applied to sterospecifically quantify the content of α-, β-, and γ-hexabromocyclododecane (HBCD) in six fish species from the Norwegian Etnefjorden. A combination of a β-PM cyclodextrin and an achiral column enabled the paired chromatographic separation of the stereoisomers in the order (-)-α-, (+)-α-, (-)-β-, (+)-β-, (+)-γ- and, (-)-γ-HBCD. The limits of detection were in the range of 6–21 pg g-1 depending on the stereoisomer and the concentrations of α-, β-, and γ-HBCD in fillets ranged from <5.4 ng g-1 to 11.1 µg g-1 lipid weight. α-HBCD enantiomers were throughout dominating, and in most cases the accumulation of the respective first eluted enantiomers ((-)-α-, (-)-β- and (+)-γ-HBCD) was observed. Deviations from the racemic EF-value were considered to be significant if it was outside of the expanded uncertainty range for each of the racemic HBCD-ratios. The composition of HBCD isomers varied between the investigated fish species and the relative high values for the γ-HBCD concentrations for the bottom-dwellers flounder and thorny skate seems to echo the HBCD pattern of ocean sediments. KW - Flame retardant KW - Diastereomers KW - Chiral separation KW - Bioaccumulation KW - Enantiomeric fraction PY - 2010 DO - https://doi.org/10.1016/j.chemosphere.2010.06.019 SN - 0045-6535 SN - 0366-7111 VL - 80 IS - 10 SP - 1241 EP - 1245 PB - Elsevier Science CY - Kidlington, Oxford AN - OPUS4-22377 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Scharf, Holger A1 - Becker, Roland A1 - Bremser, Wolfram A1 - Buge, Hans-Gerhard A1 - Lück, Detlef T1 - Certification of the mass fractions of trace elements and pentachlorophenol in an impregnated wood reference material N2 - The resource-saving utilisation of recovered waste wood is a matter of growing concern. In several European countries, this utilisation is governed by regulations and is dependent on the contents of certain trace elements and organic compounds. Thus, for decisionmaking with respect to waste wood management (recycling or combustion), reliable analytical data are needed and, due to their great economic and environmental impact, must be assured by appropriate quality control. To support the improvement in quality assurance in waste wood analysis, for the first time, a wood reference material was certified for its mass fractions of arsenic, cadmium, chromium, copper, lead, mercury, and pentachlorophenol (PCP). These analytes were selected because they represent typical constituents of wood preservatives most widely used in the past. Material preparation and testing of homogeneity and stability were carried out by BAM Federal Institute for Materials Research and Testing. The certification measurements were performed involving selected laboratories with documented expertise in the field of waste wood analysis. The certified values and their corresponding uncertainties were assigned in full compliance with the requirements of ISO Guide 35. The certified mass fractions and their expanded uncertainties (k/i> = 2) are as follows: (3.1 ± 0.5) mg/kg for As, (3.02 ± 0.24) mg/kg for Cd, (36.4 ± 2.6) mg/kg for Cr, (22.9 ± 1.7) mg/kg for Cu, (0.60 ± 0.14) mg/kg for Hg, (39 ± 4) mg/kg for Pb, and (7.9 ± 0.6) mg/kg for PCP. The certified material is available as European Reference Material ERM®-CD100. KW - Waste wood KW - Trace elements KW - Pentachlorophenol KW - Certification KW - European reference material PY - 2010 DO - https://doi.org/10.1007/s00769-010-0699-0 SN - 0949-1775 SN - 1432-0517 VL - 15 IS - 11 SP - 613 EP - 619 PB - Springer CY - Berlin AN - OPUS4-22392 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dorgerloh, Ute A1 - Theissen, H. A1 - Becker, Roland A1 - Hilbert, S. A1 - Nehls, Irene T1 - Probennahme und Quantifizierung von LHKW, Ethen und Methan in Grundwasser N2 - Der Einsatz aktiver (Pumpprobennahme, Schöpfprobennahme) und passiver (Diffusionsprobennahme) Probennahmetechniken zur Gehaltsbestimmung von LHKW sowie Ethen und Methan in Grundwasser wird aus ordnungsbehördlicher Sicht hinsichtlich der Vergleichbarkeit von Analysendaten untersucht. Am Beispiel einer Kontamination mit Trichlorethen sowie 1,2-Dichlorethen und Vinylchlorid kann deutlich gemacht werden, dass die Einsatzmöglichkeit der passiven Probennahme durch unzureichende Strömungsverhältnisse im Aquifer sowie biologische Aktivität im Pegelrohr begrenzt ist. Der aktiven Probennahme ist bei ungeklärten oder unzureichenden Strömungsverhältnissen im Grundwasserleiter daher der Vorzug zu geben. Das gaschromatographische Verfahren für Vinylchlorid mittels Dampfraumtechnik wird um die Quantifizierung von Methan und Ethen erweitert. Dabei werden für die Bewertung von Altlasten relevante Bestimmungsgrenzen von 0,1 µg/l (Vinylchlorid, Ethen) sowie 5 µg/l (Methan) erreicht. Aus der Validierung der Analysenmethode und den Ergebnissen verschiedener Probennahmen werden Toleranzbereiche für die Ergebnisse eines Grundwassermonitorings abgeschätzt. Diese Streubreiten von Monitoring- Ergebnissen sollten von Ingenieurbüros und zuständigen Ordnungsbehörden bei der Bewertung der komplexen Abbauprozesse eines LHKW-Grundwasserschadens beachtet werden. KW - Passive sampling KW - Active sampling KW - Groundwater KW - Trichloroethene KW - Vinyl chloride KW - Methane PY - 2010 DO - https://doi.org/10.1007/s00767-010-0144-7 SN - 1430-483X VL - 15 IS - 4 SP - 231 EP - 239 PB - Springer CY - Berlin ; Heidelberg AN - OPUS4-22617 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Moser, H. A1 - Roembke, J. A1 - Donnevert, G. A1 - Becker, Roland T1 - Evaluation of biological mehtods for a future methodological implementation of the hazard criterion H14 'ecotoxic' in the European waste list (2000/532/EC) N2 - The ecotoxicological characterization of waste is part of its assessment as hazardous or non-hazardous according to the European Waste List. For this classification 15 hazard criteria are derived from the Council Directive 91/689/EEC on hazardous waste. Some of the hazard criteria are based on the content of dangerous substances. The criterion H14 'ecotoxic' lacks of an assessment and testing strategy and no specific threshold values have been defined so far. Based on the recommendations of CEN guideline 14735 (2005), an international round robin test (ring test) was organized by the German Federal Environment Agency in order to define suitable test methods for the biological assessment of waste and waste eluates. A basic test battery, consisting of three aquatic and three terrestrial tests, was compiled. In addition, data were submitted for ten additional tests (five aquatic (including a genotoxicity test) and five terrestrial ones). The tests were performed with three representative waste types: an ash from an incineration plant, a soil containing high concentrations of organic contaminants (polycyclic aromatic hydrocarbons) and a preserved wood waste. The results of this ring test confirm that a combination of a battery of biological tests and chemical residual analysis is needed for an ecotoxicological characterization of wastes. With small modifications the basic test battery is considered to be well suitable for the hazard and risk assessment of wastes and waste eluates. All results and documents are accessible via a web-based data bank application. KW - European waste list KW - Waste legislation KW - Bio test battery KW - Ring test structure KW - Interlaboratory comparison KW - Waste ecotoxicity PY - 2011 DO - https://doi.org/10.1177/0734242X10367844 SN - 0734-242X SN - 1096-3669 VL - 29 IS - 2 SP - 180 EP - 187 PB - Sage CY - London AN - OPUS4-23271 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Esslinger, Susanne A1 - Becker, Roland A1 - Jung, Christian A1 - Schröter-Kermani, C. A1 - Nehls, Irene T1 - Time courses of HBCD levels and enantiomeric signatures in herring gull eggs from the German coast T2 - Dioxin 2010 - 30th International symposium on halogenated persistent organic pollutants CY - San Antonio, TX, USA DA - 2010-09-12 PY - 2010 UR - http://www.dioxin20xx.org/pdfs/2010/10-1112.pdf N1 - Serientitel: Organohalogen Compounds – Series title: Organohalogen Compounds VL - 72 SP - 255 EP - 258 AN - OPUS4-23167 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Esslinger, Susanne A1 - Becker, Roland A1 - Nehls, Irene T1 - HBCD isomers: degradation rates and hydroxylated products from microsome incubation experiments T2 - Dioxin 2010 - 30th International symposium on halogenated persistent organic pollutants CY - San Antonio, TX, USA DA - 2010-09-12 PY - 2010 UR - http://www.dioxin20xx.org/pdfs/2010/10-1113.pdf N1 - Serientitel: Organohalogen Compounds – Series title: Organohalogen Compounds VL - 72 SP - 259 EP - 262 AN - OPUS4-23168 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -