1.1 - Environmental Analysis of Organics in Water
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Practice Questions
Test your understanding with targeted questions
What is an analyte?
💡 Hint: Think about what we are trying to detect or quantify in a sample.
What does LLE stand for?
💡 Hint: Recall the method involving the transfer of analytes between two liquids.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the first step to analyze an analyte in water?
💡 Hint: Think about the processes involved before measurement can occur.
True or False: Solid-Phase Extraction uses a liquid solvent to isolate analytes.
💡 Hint: Consider the differences between solid and liquid extraction methods.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A sample with an initial analyte concentration of 10 mg/L must be diluted to below the MDL of 1 mg/L. How much water must you add to reduce this concentration to 0.5 mg/L?
💡 Hint: Think about how dilution works and the ratio of concentrations.
If 5 mg of an analyte is spiked into a 500 mL water sample and during extraction only 3.2 mg is recovered, what is the recovery percentage?
💡 Hint: Use the recovery formula based on the spike you added.
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