Practice - Calculating Recovery
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Practice Questions
Test your understanding with targeted questions
Define 'surrogate' in the context of environmental analysis.
💡 Hint: Consider its role in recovery calculations.
What is meant by extraction in analytical chemistry?
💡 Hint: Think about the methods we discussed.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of using a surrogate in analytical chemistry?
💡 Hint: Think about what surrogate means in context.
True or False: The recovery rate is always expected to be above 100%.
💡 Hint: Consider how analytical processes might lead to material loss.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A sample contains 150 micrograms of compound X. After extraction and analysis, it reveals a recovery of 90 micrograms. What is the recovery rate?
💡 Hint: Use the same formula we discussed for percentage calculation.
If you added 50 mg/L of an analyte to a sample and recovered only 2 mg/L after analysis, calculate the efficiency of extraction as a percentage.
💡 Hint: Think about how to represent it as a percentage of the initial concentration.
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