Practice Material Specifications - 9.2 | 5. Introduction - part B | Environmental Quality Monitoring & Analysis, - Vol 2
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9.2 - Material Specifications

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a surrogate in environmental analysis?

💡 Hint: Think about why we need something to represent the analyte.

Question 2

Easy

Why do we need to calculate recovery percentage?

💡 Hint: Consider the steps in sample preparation.

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 function of a surrogate in analytical chemistry?

  • It increases the analyte concentration
  • It mimics the analyte's behavior
  • It reduces extraction time

💡 Hint: Remember, surrogates help us in calculations.

Question 2

Is it important to quantify recovery percentage in sample analysis?

  • True
  • False

💡 Hint: Think about why we check the results against what we put in.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You extracted 2.5 micrograms of analyte from an environmental sample. If the initial concentration was expected to be 100 micrograms, calculate the recovery percentage. How does this impact your method's reliability?

💡 Hint: Use the formula for percentage recovery.

Question 2

In a solid sample, you suspect matrix interference. Your extraction yields varying amounts of the analyte. How would you modify your method to minimize this effect?

💡 Hint: Think about known methods that reduce matrix effects.

Challenge and get performance evaluation