Practice Solid Phase Extraction (SPE) - 1.1.7 | 2. Environmental Analysis of Organics in Water | Environmental Quality Monitoring & Analysis, - Vol 2
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Knowledge

1.1.7 - Solid Phase Extraction (SPE)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does SPE stand for?

💡 Hint: Think about the process of isolating analytes.

Question 2

Easy

Why do we use an adsorbent in SPE?

💡 Hint: It's important for the extraction process.

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 Solid Phase Extraction (SPE)?

  • To directly measure analytes
  • To concentrate analytes from a sample
  • To dilute samples

💡 Hint: Think about what happens to the analyte during the process.

Question 2

True or False: SPE can only be used for liquid samples.

  • True
  • False

💡 Hint: Consider the flexibility of extraction techniques.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have 5 liters of water containing an unknown analyte concentration. After performing SPE, you obtain a final volume of 10 mL and a measured concentration of 0.2 mg/mL in the extract. Calculate the concentration of the analyte in the original water.

💡 Hint: Think about how concentration relates to volume.

Question 2

A liquid sample extraction results in a 75% recovery rate of an analyte. If the expected recovery was 40 micrograms, calculate how much of the analyte was actually recovered.

💡 Hint: Remember to multiply the expected recovery by the recovery percentage.

Challenge and get performance evaluation