Flame Emission Spectroscopy

Cards (13)

  • What is another name for flame emission spectroscopy?
    Flame photometry
  • What happens to metal ions when they are heated?
    They emit light at specific wavelengths
  • How does the flame test work?
    By heating metal over a Bunsen burner flame
  • What is a limitation of the flame test?
    It struggles with similar colored metals
  • How does flame emission spectroscopy overcome the limitations of the flame test?
    By using a spectroscope to detect wavelengths
  • What does each metal ion produce in flame emission spectroscopy?
    A unique line spectrum
  • What does the intensity of lines on the spectrum indicate?
    The concentration of the ion
  • What happens when a sample contains multiple metal ions in flame emission spectroscopy?
    The line spectrum shows lines for all ions
  • How can scientists identify ions in an unknown sample?
    By comparing its spectrum to known spectra
  • What do scientists look for in the line spectrum of an unknown sample?
    Metal ions with the same lines
  • What are the three main benefits of instrumental methods like flame emission spectroscopy?
    Accuracy, sensitivity, and speed
  • How do instrumental methods compare to manual tests?
    Instrumental methods are more accurate and faster
  • What are the key differences between flame tests and flame emission spectroscopy?
    • Flame tests are basic and cheap
    • Flame emission spectroscopy uses expensive machines
    • Spectroscopy provides better results
    • Spectroscopy can analyze multiple ions simultaneously