Stationary Phase in Chromatography
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Questions and Answers

What is recommended to keep spots small and compact during solvent evaporation?

  • Avoiding the use of air for evaporation
  • Applying the sample in several portions with intermediate drying (correct)
  • Applying the sample in one thick layer
  • Applying the sample in one single drop

    • How can solvent evaporation be accelerated?

  • By using cold air
  • By applying a thick sample layer
  • By using hot air (correct)
  • By avoiding intermediate drying

    • What should be avoided to prevent diffusing during solvent evaporation?

  • Avoiding intermediate drying
  • Applying the sample all at once
  • Applying the sample in one thick layer (correct)
  • Using cold air for evaporation

    • Which method is NOT helpful in maintaining small and compact spots during solvent evaporation?

    <p>Applying a thick sample layer</p> Signup and view all the answers

    Why is it better to apply the sample in several portions during solvent evaporation?

    <p>To keep spots small and compact</p> Signup and view all the answers

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