Gas Chromatography Basics
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Questions and Answers

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

  • Gas stationary chromatography (GStC)
  • Gas vapor chromatography (GVC)
  • Gas liquid chromatography (GLC)
  • Gas solid chromatography (GSC) (correct)

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

  • Evaporation from the column
  • Interaction with the carrier gas
  • Adsorption onto the stationary phase (correct)
  • Dissolution in the mobile phase

What is the function of the mobile phase in gas chromatography?

  • To separate the components of the sample
  • To move through the column carrying the sample components (correct)
  • To adsorb onto the stationary phase
  • To interact with the stationary phase

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

<p>A liquid with very low volatility supported on an inert solid matrix (D)</p> Signup and view all the answers

What is the main purpose of gas chromatography?

<p>Separation of volatile substances in a gaseous mixture (B)</p> Signup and view all the answers

What is the main reason for differential migration of solutes in gas chromatography?

<p>Different affinities for the stationary phase (C)</p> Signup and view all the answers

What is the stationary phase in gas solid chromatography (GSC)?

<p>Solid like silica or alumina (A)</p> Signup and view all the answers

What happens as the carrier gas flows through the column in gas chromatography?

<p>Components of the sample come in contact with the stationary phase (A)</p> Signup and view all the answers

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

<p>Suitable carrier gas (A)</p> Signup and view all the answers

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

<p>Gas liquid chromatography (GLC) (C)</p> Signup and view all the answers

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