Other questions in this quiz

2. Which is NOT a use of GC-MS?

  • drug testing
  • airport security
  • treatment of strokes
  • forensic analysis

3. Which is NOT a limitation of gas chromatography?

  • substances have the same retention times
  • unknown compounds have no reference retention time
  • unknown compounds have no reference Rf value
  • substances can 'hide' beneath each other so will not be detected

4. What does a liquid stationary phase separate by?

  • absorption
  • relative solubility
  • adsorption

5. What is the definition of retention time?

  • the time taken for the gas to be injected into the column and dissolve in the stationary phase
  • distance moved by component divided by distance moved my solvent front
  • the time taken for a particular compound to travel through the column to the detector, from injection to leaving the column
  • the time taken for a particular compound to dissolve in the stationary phase

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jdellams

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good quiz didnt quit understand some of the questions

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