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3 cards from this section. Quick, good the night before a test.
What is solvent extraction used for?
Think about the processes that require analytes to be in a liquid state.
Name one analytical instrument that uses extracted samples.
Consider what instruments analyze compounds in liquids.
What is the primary purpose of solvent extraction?
Consider its role in the analysis process.
True or False: Solid-phase extraction is usually less messy than liquid-liquid extraction.
Think about the physical processes involved.
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.
Remember to convert liters to milliliters.
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.
Find the total amount that should have been present before extraction.
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