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4 cards from this section. Quick, good the night before a test.
What is a surrogate in environmental analysis?
Think about why we need a compound that mimics the target analyte.
Define recovery efficiency.
Consider what happens during the extraction process.
What is the purpose of a surrogate in environmental analysis?
Think about the role of surrogates in calculations.
True or False: Calibration curves are only necessary for solid samples.
Consider their broader role in analytical chemistry.
A water sample has 150 mg of an unknown contaminant, and you add 50 mg of surrogate. You recover 35 mg of the surrogate. What is the recovery percentage, and how can you use this to estimate the contaminant concentration?
First, calculate the recovery, then apply it to the contaminant's mass.
Consider two samples: one solid and one liquid, analyzed using the same method. Discuss potential differences in extraction efficiency and recovery rates.
Think about how physical states influence analytical processes.
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