Practice False Positives (5.2) - Analyte Losses in Chemical Analysis - Environmental Quality Monitoring & Analysis, - Vol 2

Practice: False Positives

Lesson 5.2Analyte Losses in Chemical Analysis

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10 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a false positive?
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Think about analytical tests and their outcomes.
Question 2.
Name one source of sample gain.
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Consider what might cause contamination in a lab.
3Question 3.
What does a false positive indicate?
- Detected analyte levels are accurate
- Detected analyte levels are inflated
- Detected analyte levels are lower than true
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Consider the definitions we've discussed.
4Question 4.
True or False: All sample gains are bad and should be avoided at all costs.
- True
- False
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Think about scenarios where additional measurements might come from valid sources.
Question 5.
You conduct a series of experiments and notice unusually high readings in your samples consistently. Describe a logical step-by-step approach to troubleshoot this issue, including how you would document your findings.
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Think methodically about every stage of the sampling and analysis process.
Question 6.
You have a sample with suspected contamination but also contains a known analyte. Explain how you would proceed with both the detection of false positives and assurance of accurate results.
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Consider how controlling variables can lead to reliable conclusions from your tests.

6 more questions in this section. Enroll free to practise them all.