Method and device for the enrichment of a substance, sought from a sample in a tube of graphite

摘要

P the present invention relates to a method and device for the enrichment of a substance, which is desired from a sample in a tube of graphite. / p & & p & is characterized in that the sample is vaporized and is precipitated on the inner wall of a tube of graphite which is maintained at a lower temperature. / p & & p & method applicable to the vaporization of substances for an analysis by spectro - photometry at atomic absorption without a flame. / p