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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is solvent extraction used for?
💡 Hint: Think about the processes that require analytes to be in a liquid state.
Question 2
Easy
Name one analytical instrument that uses extracted samples.
💡 Hint: Consider what instruments analyze compounds in liquids.
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 solvent extraction?
- Managing data
- Transferring analytes
- Maintaining cell cultures
💡 Hint: Consider its role in the analysis process.
Question 2
True or False: Solid-phase extraction is usually less messy than liquid-liquid extraction.
- True
- False
💡 Hint: Think about the physical processes involved.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If you have a 1 liter water sample with 2 milligrams of analyte and extract it with 50 ml of solvent, calculate the theoretical concentration of the analyte in the solvent assuming complete recovery.
💡 Hint: Remember to convert liters to milliliters.
Question 2
You performed an extraction and obtained 5 mg of analyte in 25 ml. If you started with 1 mg/L in 1000 ml, calculate recovery percentage.
💡 Hint: Find the total amount that should have been present before extraction.
Challenge and get performance evaluation