TY - JOUR A1 - Plotnikov, Alexei A1 - Pfeifer, Jens A1 - Richter, Silke A1 - Kipphardt, Heinrich A1 - Hoffmann, V. T1 - Determination of major nonmetallic impurities in magnesium by glow discharge mass spectrometry with a fast flow source using sintered and pressed powder samples N2 - Fast flow glow discharge mass spectrometry with a Grimm-type ion source providing a high sputter rate was used for the determination of major nonmetallic impurities in magnesium. The analytical signal was found to be strongly influenced by the electrical discharge parameters. For calibration by standard addition, synthetic standard samples were produced in two different ways—namely, by pressing and by sintering doped metal powders. The observed sensitivity of the calibration curves was shown to depend on the particle size of the powder. For the magnesium powders, the mass fractions of oxygen, nitrogen, boron, and silicon were determined to be about 0.01 kg·kg-1 (relative standard deviation approximately 10–20 %), 2,700 mg·kg-1, 150 mg·kg-1, and 300 mg·kg-1, respectively. KW - Glow discharge mass spectrometry KW - Magnesium matrix KW - Nonmetallic impurities KW - Fast flow source KW - Electrical parameters KW - Calibration samples KW - Non-metals KW - Standard samples KW - Powders PY - 2014 U6 - https://doi.org/10.1007/s00216-014-8185-x SN - 1618-2642 SN - 1618-2650 VL - 406 IS - 29 SP - 7463 EP - 7471 PB - Springer CY - Berlin AN - OPUS4-31975 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -