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4 cards from this section. Quick, good the night before a test.
What is instrument sensitivity?
Think about how instruments react to very low concentrations.
Define sample volume.
Consider its relation to concentration and detection limits.
What does the term 'detection limit' refer to?
Think about how instruments measure low levels of substances.
True or False: A precise measurement is always accurate.
Consider how you can consistently hit the same point without hitting the target.
A balance has a detection limit of 0.1 mg, but you are trying to measure a substance that is expected to be present at 0.05 mg. What should you do?
Consider ways to improve measurement effectiveness.
You collected two samples from the same aquatic source: one with 50ml and another with 100ml. The TSS analyzed was 2 mg/L for the first and 1 mg/L for the second. Explain the anomaly.
Think about the impact of dilution and measurement sensitivity.
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