Practice Sample Collection and Storage Design - 4.1 | 3. Analyte Losses in Chemical Analysis | Environmental Quality Monitoring & Analysis, - Vol 2
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Knowledge

4.1 - Sample Collection and Storage Design

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are the three main mechanisms of analyte loss?

💡 Hint: Think of the acronym V.R.A to remember them.

Question 2

Easy

Why are glass containers preferred for organic samples?

💡 Hint: Consider the material properties of glass versus plastic.

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 volatilization in the context of sample collection?

  • A process of chemical reaction
  • A method of sample analysis
  • The evaporation of analytes from a sample

💡 Hint: Think about what happens to water when it's left out.

Question 2

True or False: Adsorption can only occur with organic compounds.

  • True
  • False

💡 Hint: Consider the properties of different materials.

Solve 3 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A field scientist collects water samples from a river, but upon analysis, she finds significant discrepancies between the expected and actual analyte concentrations. Discuss potential reasons for these discrepancies and propose solutions.

💡 Hint: Consider what could have happened from collection to analysis.

Question 2

Propose a quality control plan for a laboratory analyzing organics in water samples. Include specific methods and procedures to minimize analyte loss.

💡 Hint: Think about all the stages from collection to analysis.

Challenge and get performance evaluation