Gas Chromatography Techniques
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Questions and Answers

What is the mobile phase in gas chromatography?

  • An inert solid matrix
  • A carrier gas (correct)
  • A solid like silica or alumina
  • A liquid with low volatility

    • Which type of gas chromatography is most useful for the separation and analysis of gases like CH4 and CO2?

  • Gas solid chromatography (GSC) (correct)
  • Gas liquid chromatography (GLC)
  • Both GSC and GLC
  • None of the above

    • What is the stationary phase in gas liquid chromatography (GLC)?

  • A carrier gas
  • A liquid with very low volatility supported on an inert solid matrix (correct)
  • A solid like silica or alumina
  • A suitable carrier gas

    • What is the affinity of solutes towards in gas solid chromatography (GSC)?

    <p>Adsorption onto the stationary phase</p> Signup and view all the answers

    How do components of a sample get separated in gas chromatography?

    <p>&quot;They have different affinities for the stationary phase, resulting in differential migration of solutes&quot;</p> Signup and view all the answers

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