flame emission spectroscopy

Cards (7)

  • during the flame emission spectroscopy a sample is placed in a flame. as the ions heat up the electrons speed up and when they are back to there original energy levels they release energy as light
  • the light passes through the spectroscope which detects different wavelengths of light to produce a line spectrum
  • the combination of wavelengths emitted by an ion depend on its charge and its electron arrangement
  • the intensity of the spectrum indicates the concentration of that ion in solution
  • the line spectra can be used to identify ions in solution and calculate their concentration
  • flame emission spectroscopy can also be used to identify different ions in mixtures. this makes it more useful than flame tests
  • what are the advantages to using machines - instrumental anaylsis?
    very sensitive, fast and accurate