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- Zeitschriftenartikel (4) (entfernen)
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- Copper (2)
- Reference material (2)
- Certification (1)
- Determination of oxygen (1)
- Elemental analytical mehtods (1)
- Feinzink (1)
- GD-MS (1)
- LA-ICP-MS (1)
- LA-ICP-OES (1)
- Magnesium (1)
The preparation and analysis of the oxygen mass fraction of three pure copper reference materials (BAM-379/1, BAM-379/2, BAM-379/3) intended for the calibration of spark emission spectrometry are described here. Data of homogeneity testing and round robin certification in collaboration with 12 independent laboratories from metalworking industry and research are reported. Problems with the establishment of traceability in this special case are discussed.
Three methods for direct solid sampling of bulk material namely IR laser ablation, glow discharge and spark OES, were compared with respect to analytical figures of merit obtained for elemental analysis with atomic spectrometry. Matrices investigated were copper, pressed doped copper powder, and magnesium alloys. For the vast majority of analytes, statistical equivalence regarding precision (usually ≤ 5%) and the performance of the calibrations between the compared methods was demonstrated.