Practice Monitoring And Analysis (1.1) - Environmental Quality - Environmental Quality Monitoring & Analysis, - Vol 2

Practice: Monitoring and Analysis

Lesson 1.1Environmental Quality

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10 questions

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

Question 1.
What is the main purpose of liquid-liquid extraction?
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Think about the function solvents serve in sample analysis.
Question 2.
Name one advantage of solid-phase extraction over liquid-liquid extraction.
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Consider how the extraction process changes.
3Question 3.
What is the technique called that uses a solvent to remove organic compounds from water?
- Liquid-Liquid Extraction
- Solid-Phase Extraction
- Desorption
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Remember how we discussed solvent functions.
4Question 4.
True or False: Solid-phase extraction uses a liquid phase to capture analytes.
- True
- False
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Think about what the extraction method entails.
Question 5.
Consider a case where a solvent is too volatile during extraction and causes significant co-evaporation. Suggest how to modify the method to minimize analyte losses.
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Think about how solvent properties affect its behavior during heating.
Question 6.
After applying solid-phase extraction, you find that some unwanted impurities remain in the extract. What could be a potential cleanup step you could perform?
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Consider what filtering mediums can clarify your samples.

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