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Questions and Answers
In chromatography, the mobile phase refers to:
In chromatography, the mobile phase refers to:
- The phase that remains fixed in space
- The phase containing the sample
- The phase into which the sample is injected or placed (correct)
- The phase that separates solutes based on distribution ratio
What is the distribution ratio, D, used for in chromatography?
What is the distribution ratio, D, used for in chromatography?
- To calculate equilibrium concentration in the extracting phase
- To calculate the rate of mobile phase movement
- To calculate fraction of solute that remains in the sample after an extraction (correct)
- To calculate equilibrium concentration in the sample
What is the purpose of the stationary phase in chromatography?
What is the purpose of the stationary phase in chromatography?
- To separate solutes based on distribution ratio
- To inject or place the sample
- To partition components with the mobile phase (correct)
- To contain the mobile phase
Which chromatographic technique uses a stationary phase that is a solid?
Which chromatographic technique uses a stationary phase that is a solid?
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Which type of separation relies on components partitioning themselves between two phases?
Which type of separation relies on components partitioning themselves between two phases?
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