TY - CONF A1 - Schultze, Karin A1 - Nehls, Irene A1 - Bremser, Wolfram A1 - Becker, Roland A1 - Win, Tin T1 - Zertifiziertes Referenzmaterial "BAM-U007" - Organochlorpestizide in Boden T2 - ANAKON 2001 CY - Konstanz, Germany DA - 2001-04-04 PY - 2001 SP - 1(?) AN - OPUS4-1314 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Philipp, Rosemarie A1 - Hanebeck, Olaf A1 - Hein, Sebastian A1 - Bremser, Wolfram A1 - Win, Tin A1 - Nehls, Irene T1 - Ethanol/water solutions as certified reference materials for breath alcohol analyzer calibration N2 - The Federal Institute for Materials Research and Testing (BAM), Germany, has issued a series of large volume ethanol in water certified reference materials (CRMs), primarily developed for the calibration of evidential breath alcohol analyzers in Germany. The certified parameter is the ethanol mass concentration at 20 °C. When used in a wet bath simulator, the solutions deliver gas samples that meet the requirements set by the Organization of Legal Metrology for calibration of breathalyzers. The materials were prepared gravimetrically by spiking of ethanol into water in single 5 L units. A complete uncertainty budget for the preparation process has been established. The purity of the commercial ethanol stock solution was identified to be the main source of uncertainty. For stability and homogeneity measurements and for the verification of the gravimetric mass concentration of the CRMs, a robust high-precision gas chromatography, with flame-ionization detection method for ethanol determination in aqueous samples was developed and validated. The good performance of this method has been demonstrated in several international comparisons organized by the Consultative Committee for Amount of Substance-Metrology in Chemistry at the International Bureau of Weights and Measures. KW - Certified reference material KW - Ethanol in water KW - Breath alcohol KW - GC-FID PY - 2010 U6 - https://doi.org/10.1007/s00769-009-0605-9 SN - 0949-1775 SN - 1432-0517 VL - 15 IS - 3 SP - 141 EP - 146 PB - Springer CY - Berlin AN - OPUS4-20999 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lehnik-Habrink, Petra A1 - Hein, Sebastian A1 - Win, Tin A1 - Bremser, Wolfram A1 - Nehls, Irene T1 - Multi-residue analysis of PAH, PCB, and OCP optimized for organic matter of forest soil KW - DDT breakdown KW - Extraction efficiency KW - Forest soil KW - Multi-residue analysis KW - Organic pollutants KW - Soil organic matter PY - 2010 U6 - https://doi.org/10.1007/s11368-010-0241-3 SN - 1439-0108 VL - 10 IS - 8 SP - 1487 EP - 1498 PB - Springer CY - Berlin; Heidelberg AN - OPUS4-22945 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -