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单词 spectrochemical analysis
释义
spectrochemical analysis

Geology and Earth Sciences
  • An analytical technique in which a sample is heated to a high temperature, usually in a carbon arc, to produce emission lines whose intensities are proportional to the abundance of elements present. Line intensities may be recorded on photographic plates or measured directly by a photosensitive device, e.g. a photomultiplier. See also spectrum.


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