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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a surrogate in analytical chemistry.
💡 Hint: What is it supposed to act like?
Question 2
Easy
What is the formula for calculating the recovery rate?
💡 Hint: Think about how you compare what you have now to what you started with.
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 surrogates in analysis?
- Increase recovery
- Mimic analyte behavior
- Calibrate instruments
💡 Hint: Think about why we introduce something similar to the analyte.
Question 2
True or False: A higher recovery rate always indicates a better extraction process.
- True
- False
💡 Hint: What other factors might influence recovery?
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You conduct an extraction of a solid sample with a known analyte concentration. If you start with 200 mg and recover 30 mg after extraction, calculate the recovery percentage.
💡 Hint: Use the recovery formula to solve.
Question 2
A calibration curve indicates that samples should yield a response of 5000 units for an analyte concentration of 25 mg/L. If a sample yields 10,000 units, what is the concentration of the analyte?
💡 Hint: What kind of relationship does this suggest between response and concentration?
Challenge and get performance evaluation