To determine the oscillator strength of some induced absorption bands by doping silver in KC1, the amount of silver contained in a crystalline sample is determined by means of the flame spectrochemical analysis.The facts that the absolute amount of silver contained in a sample is as small as of the order of magnitude of microgram and that the amount of the matrix material is about 10
4 times larger than that of silver make it difficult to perform a chemical analysis.The flame analysis is, however, successfully carried out within an error of a fraction of p.p.m.
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