TY - GEN A1 - Phukphatthanachai, Pranee T1 - Determination of total sulfur in a metal matrix by ICP-IDMS: Example Cu matrix N2 - Previously on sulfur determination in metal revealed a lack of traceability and inconsistent results. Solving the problems a reference procedure for sulfur measurement in metal are required to build up a reliable reference value. In this study a procedure was developed for quantification of total sulfur at low concentration (in sub ppm level) in metal using inductively coupled plasma-isotope dilution mass spectrometry (ICP-IDMS). The ion exchange method and complexing agent were applied in this procedure to avoid loading large amount of metal into the instrument. Adding ammonia as a complexing agent into sample solution to reduce sulfur-metal co-elute. The procedure shows high performance and it is expressed in % recovery of sulfur (> 90%) and % metal elimination (>99 %). Additionally, relative measurement uncertainties were calculated less than 1.5 % and the results are traceable directly to SI units. This study would establish as reference procedure for sulfur measurement in metal sample which fit for these purpose as follows; for certified reference material and assigned value for inter-laboratory comparison. T2 - Anwendertreffen Plasmaspektrometrie CY - Berlin, Germany DA - 22.02.2016 KW - Isotope dilution KW - Separation KW - Traceability PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/36075 AN - OPUS4-36075 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany