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3 cards from this section. Quick, good the night before a test.
What is the purpose of extraction in water analysis?
Recall the need to analyze low concentration compounds.
Name one commonly used solvent for liquid-liquid extraction.
Think of solvents that are immiscible with water.
What is the main purpose of extraction in the analysis of organic compounds in water?
Think about what happens to the compounds during extraction.
True or False: Interference refers to any substance that does not affect the measurement of the analyte.
Interference changes the results of what you're trying to measure.
Given a sample that contains multiple organic contaminants, propose a comprehensive analytical strategy that includes extraction, possible interferences, and filtration. Detail the steps involved and how each step mitigates contamination.
Consider the type of contaminants you might face and how each analytical step helps reduce their impact.
A lab technician is analyzing TSS in a water sample using 0.2 micron filters but finds the results inconsistent. What might be the implications of their choice of filter size, and what adjustments should they consider?
Think about the balance between accuracy and practicality in sample analysis.
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