Practice Department Of Chemical Engineering (1.2) - Analysis Methods – Chromatography Fundamentals

Practice: Department of Chemical Engineering

Lesson 1.2Analysis Methods – Chromatography Fundamentals

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8 questions

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3 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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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are the two main phases in chromatography?
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Think about what stays put and what moves.
Question 2.
Which chromatography method is better suited for volatile substances?
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Consider the state of the substances.
3Question 3.
What is the purpose of chromatography?
- To isolate single compounds
- To prepare samples
- To separate components of a mixture
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Why do we need chromatography in environmental analysis?
4Question 4.
True or False: Gas chromatography is suitable for analyzing non-volatile substances.
- True
- False
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Think about the nature of the substances being analyzed.
Question 5.
You have a mixture of volatile and non-volatile compounds. Describe the steps you'd take to analyze these compounds using chromatography methods. What factors influence your choice?
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Think about the nature and state of your sample.
Question 6.
Analyze how varying the mobile phase flow rate could impact the resulting chromatogram of a given mixture.
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Consider what happens when substances pass through the phases quickly versus slowly.

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