Practice Detecting Low Concentrations (2.1) - Chromatography and Calibration

Practice: Detecting Low Concentrations

Lesson 2.1Chromatography and Calibration

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9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the area under a peak in a chromatogram represent?
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Think about what the area quantifies.
Question 2.
What is the purpose of calibration in chromatography?
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Why do we need to measure known quantities?
3Question 3.
What does the term 'integration' refer to in chromatography?
- Measuring the height of the peak
- Calculating the area under the peak
- Observing the retention time
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What does the chromatography software do for us?
4Question 4.
SIM is primarily used for:
- True
- False
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Consider what kind of analysis SIM performs.
Question 5.
You run a GC analysis but notice overlapping peaks. Discuss how you would determine the proper separator conditions needed for resolving these peaks.
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Look into how chromatography variables affect peak resolution.
Question 6.
Evaluate a situation where using SIM without prior SCAN led to misidentification of a compound in a sample. What could have been done differently?
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Think about verification processes in analytical methods.

5 more questions in this section. Enroll free to practise them all.