In qualitative analysis, what does the term 'chromatographic retention time' ref

Practice Questions

Q1
In qualitative analysis, what does the term 'chromatographic retention time' refer to?
  1. The time taken for a sample to reach the detector
  2. The time taken for a solvent to evaporate
  3. The time taken for a compound to elute from the column
  4. The time taken for a reaction to complete

Questions & Step-by-Step Solutions

In qualitative analysis, what does the term 'chromatographic retention time' refer to?
  • Step 1: Understand that chromatography is a technique used to separate different compounds in a mixture.
  • Step 2: Know that a column is part of the chromatography setup where the mixture is passed through.
  • Step 3: Realize that each compound in the mixture takes a different amount of time to pass through the column.
  • Step 4: The time it takes for a specific compound to exit the column is called its 'retention time.'
  • Step 5: Use the retention time to help identify which compound it is, since each compound has a unique retention time.
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