TY - CONF A1 - Klingbeil, Patrick A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel A1 - Vogl, Jochen T1 - Comparative studies on the certification of reference materials by ICP-MS and TIMS using isotope dilution techniques T2 - EURACHEM/EUROLAB Symposium Reference Materials for Technologies in the New Millenium CY - Berlin, Germany DA - 2000-05-22 PY - 2000 AN - OPUS4-7709 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -