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Undergraduate Forensic Science Quiz on Chromatography, created by rachaelmccue on 17/03/2014.

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Chromatography

Chromatography

Question 1 of 7

1

In liquid chromatography, molecules that interact strongly with the solvent will move quickly through the stationary phase.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 7

1

Which of the following is the most polar bond?

Select one of the following:

  • Carbon-Hydrogen

  • Nitrogen-Hydrogen

  • Oxygen-Hydrogen

Explanation

Question 3 of 7

1

Which of the following is NOT true concerning high performance liquid chromatography?

Select one of the following:

  • The columns contain small particles of stationary phase.

  • The stationary phase is always more polar than the mobile phase.

  • The technique is suitable for in-volatile samples.

Explanation

Question 4 of 7

1

Which of the following is NOT true concerning Gas Chromatography?

Select one of the following:

  • Gas Chromatography is not suitable for analytes with high boiling points.

  • Capillary columns are longer and thinner than packed columns.

  • Ultra-Violet absorption is the commonest detection method in Gas Chromatography.

Explanation

Question 5 of 7

1

Qualitative analysis in high performance liquid and gas chromatography is based on the measurement of what?

Select one of the following:

  • Retention time

  • Resolution

  • Charge

Explanation

Question 6 of 7

1

What kind of column has a diameter of 1cm?

Select one of the following:

  • Packed Column

  • Capillary Column

Explanation

Question 7 of 7

1

In high performance liquid chromatography, hydrocarbons are chemically bonded to silica particles and used as a stationary phase.

Select one of the following:

  • True
  • False

Explanation

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