Flame Emission Spectroscopy Analysis
Chemistry: AQA GCSE Higher, topic 8.3.11
Flame Emission Spectroscopy Analysis
We can analyse the line spectra produced by flame emission spectroscopy to see which metal ions are present and their concentrations.
Identity of metal ions
- Each metal ion will generate a new line spectrum. This means that we can identify all ions present in a solution.
Concentration of metal ions
- The concentration of an ion is indicated by the intensity of line spectra.
Reference spectra
- Unlike flame tests, flame emission spectroscopy allows us to analyse mixtures by comparing them with reference spectra.
Test yourself on Flame Emission Spectroscopy Analysis
Why can flame emission spectroscopy identify the metal ions in a mixture, unlike a simple flame test?
What does the intensity of the line spectra produced in flame emission spectroscopy indicate?
Select the correct statement for each pair
Two different metal ions are each tested separately using flame emission spectroscopy. Why does the line spectrum produced by one ion look different from the line spectrum produced by the other?
More of a particular metal ion is dissolved into a solution that is already being tested by flame emission spectroscopy. What will happen to the line spectrum produced by that ion?