Analytical Chemistry: Internal Standard Method
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Questions and Answers

What is the retention index for the unknown compound?

  • Not provided in the text (correct)
  • 15.7 min
  • 18.5 min
  • 14.3 min

Which method uses the area of the target component peak as a proportion of the total area of all detected peaks for analysis?

  • Percentage peak area method (correct)
  • Standard addition method
  • External standard method
  • Corrected percentage peak area method

What is an advantage of the corrected percentage peak area method over the percentage peak area method?

  • No quantitation accuracy issues
  • Reduced quantitation accuracy
  • Compensation for relative component sensitivity (correct)
  • Simpler analysis

Which method has an advantage of simple analysis without using a standard sample?

<p>Percentage peak area method (B)</p> Signup and view all the answers

What disadvantage is associated with the percentage peak area method?

<p>Reduced quantitation accuracy (B)</p> Signup and view all the answers

Which method performs quantitative analysis with compensation for relative component sensitivity?

<p>Corrected percentage peak area method (B)</p> Signup and view all the answers

What does the corrected percentage peak area method compensate for?

<p>Relative component sensitivity (A)</p> Signup and view all the answers

'Reduced quantitation accuracy due to the effect of relative component sensitivity' is associated with which method?

<p>Percentage peak area method (D)</p> Signup and view all the answers

What is an advantage of the percentage peak area method?

<p>Simple analysis without using a standard sample. (A)</p> Signup and view all the answers

What does the percentage peak area method rely on for analyzing quantity?

<p>Peak areas proportion. (C)</p> Signup and view all the answers

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