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Quantitative investigation of Cu-Ni and Ag-Pd alloys with a laser microprobe mass analyzer

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Quantitative Investigation of Cu-Ni and Ag-Pd Alloys with a Laser Microprobe Mass Analyzer

The analytical capability of the LAMMA-1000 instrument is discussed with respect to the evaporation and ionization probability for known concentrations of binary alloys with gradually changing composition. The relative sensitivity coefficients of Ni to Cu and Pd to Ag were found to be constant at 0.95±0.20 and 0.54±0.09, respectively, for a variety of binary alloy. No correlation with the alloy density was found for a variety of binary alloys. The ionization probability remains constant when the alloy composition changes. It is assumed that the selective evaporation does not occur within and near the laser focus. The phase transition and evaporation kinetics with respect to time and space seem to be a less dominant factor for ion formation in the LAMMA instrument. The absolute quantitative analysis is possible by the use of a calibration curve, if the total ions or the sampling volume can be determined. The use of the relative sensitivity coefficients is an effective method for a quantitative analysis with an error of 10–30%.

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Science, Science University of Tokyo, Tokyo, Japan

    Soichi Nadahara, Tadashi Kikuchi & Keiichi Furuya

  2. ANELVA Corporation, Tokyo, Japan

    Shiro Furuya & Kiyoshi Hoshino

Authors
  1. Soichi Nadahara
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  2. Tadashi Kikuchi
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  3. Keiichi Furuya
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  4. Shiro Furuya
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  5. Kiyoshi Hoshino
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Nadahara, S., Kikuchi, T., Furuya, K. et al. Quantitative investigation of Cu-Ni and Ag-Pd alloys with a laser microprobe mass analyzer. Mikrochim Acta 86, 331–337 (1985). https://doi.org/10.1007/BF01206903

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  • DOI: https://doi.org/10.1007/BF01206903

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