Chromatography in Chemical Analysis
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Questions and Answers

What is the purpose of preparative chromatography?

  • To separate the components of a mixture for later use, a form of purification (correct)
  • To carry the mobile phase through the system
  • To dissolve the mixture in a fluid solvent
  • To establish the presence or measure the relative proportions of analytes in a mixture
  • What is the function of the stationary phase in chromatography?

  • To carry the mobile phase through the system
  • To dissolve the mixture in a fluid solvent
  • To establish the presence or measure the relative proportions of analytes in a mixture
  • To separate the constituents based on their interactions with its surface sites (correct)
  • Why does chromatography result in the separation of constituents?

  • Due to the dissolution of the mixture in a fluid solvent
  • Due to differential partitioning between the mobile and stationary phases (correct)
  • Due to the similar affinities of constituents for the stationary phase
  • Due to the differential retention on the mobile phase
  • What is the purpose of analytical chromatography?

    <p>To establish the presence or measure the relative proportions of analytes in a mixture</p> Signup and view all the answers

    Why is preparative chromatography associated with higher costs?

    <p>Due to its mode of production</p> Signup and view all the answers

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