Practice Processing Of The Sample (2.3) - Analyte Losses in Chemical Analysis

Practice: Processing of the Sample

Lesson 2.3Analyte Losses in Chemical Analysis

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9 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is volatilization?
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Think about what happens when a liquid turns into vapor.
Question 2.
Name one method to reduce adsorption.
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Consider what type of materials interact less with substances.
3Question 3.
What is the primary reason for using airtight containers during sample transport?
- To prevent contamination
- To minimize volatilization
- To maintain temperature
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Remember why samples need to be securely stored.
4Question 4.
True or False: Surrogate standards are the same as the analytes of interest.
- True
- False
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Think about their role in analysis.
Question 5.
Propose a complete quality control plan for a new laboratory analyzing organic pollutants in water. Include methods for mitigating losses and assessing accuracy.
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Think of what processes in your awareness could lead to inaccuracies.
Question 6.
Imagine you have collected water samples for a pollutant study, but during analysis, the results indicate much lower concentrations than expected. Formulate a hypothesis explaining potential analyte loss.
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Look for issues regarding how the samples were handled from collection to analysis.

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