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2 cards from this section. Quick, good the night before a test.
What is an analyte?
Think about what we are trying to detect or quantify in a sample.
What does LLE stand for?
Recall the method involving the transfer of analytes between two liquids.
What is the first step to analyze an analyte in water?
Think about the processes involved before measurement can occur.
True or False: Solid-Phase Extraction uses a liquid solvent to isolate analytes.
Consider the differences between solid and liquid extraction methods.
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?
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?
Use the recovery formula based on the spike you added.
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