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2 cards from this section. Quick, good the night before a test.
Define what a sample is in the context of environmental monitoring.
What do we do to represent a larger population?
What is the purpose of setting sampling objectives?
Why is it important to know what you want to find?
What does the term ‘sensitivity’ refer to in analytical measurements?
It’s about noticing small differences!
True or False: If the readings on an instrument fluctuate significantly, it may indicate low sensitivity.
Think about what you observe when you use an instrument.
Given a sample volume of 2 liters, if the detection limit of your instrument is 0.001 mg/L, what is the minimum mass of the analyte you expect to measure?
Convert the volume into mg by using the detection limit.
You measure TSS of a water sample repeatedly and get values of 25 mg/L, 30 mg/L, and 28 mg/L. Calculate the average TSS and discuss its precision.
The average shows the central tendency of your results.
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