Practice Calculating Recovery - 3.2 | 5. Introduction - part B | Environmental Quality Monitoring & Analysis, - Vol 2
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3.2 - Calculating Recovery

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define 'surrogate' in the context of environmental analysis.

💡 Hint: Consider its role in recovery calculations.

Question 2

Easy

What is meant by extraction in analytical chemistry?

💡 Hint: Think about the methods we discussed.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of using a surrogate in analytical chemistry?

  • A) To increase sample volume
  • B) To act as an internal standard
  • C) To mimic the analyte's behavior
  • D) To decrease extraction time

💡 Hint: Think about what surrogate means in context.

Question 2

True or False: The recovery rate is always expected to be above 100%.

  • True
  • False

💡 Hint: Consider how analytical processes might lead to material loss.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A sample contains 150 micrograms of compound X. After extraction and analysis, it reveals a recovery of 90 micrograms. What is the recovery rate?

💡 Hint: Use the same formula we discussed for percentage calculation.

Question 2

If you added 50 mg/L of an analyte to a sample and recovered only 2 mg/L after analysis, calculate the efficiency of extraction as a percentage.

💡 Hint: Think about how to represent it as a percentage of the initial concentration.

Challenge and get performance evaluation