Practice Troubleshooting And Summary Of Qa/qc Procedures (6) - Analyte Losses in Chemical Analysis

Practice: Troubleshooting and Summary of QA/QC Procedures

Lesson 6Analyte Losses in Chemical Analysis

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10 questions

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4 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 the process called when analyte evaporates?
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Think about evaporation.
Question 2.
Name one method to check for analyte losses.
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It involves comparing known and retrieved concentrations.
3Question 3.
What is the primary purpose of QA/QC procedures?
- To minimize costs
- To ensure accurate results
- To increase analyte losses
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Think about what QA/QC stands for.
4Question 4.
True or False: Sample gains can result from contamination during analysis.
- True
- False
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Consider how the lab environment affects results.
Question 5.
A lab reports that their recovery rate is consistently lower than expected. What steps would you take to troubleshoot this issue?
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Think about every part of the analysis—where could losses happen?
Question 6.
Your analysis shows a significant sample gain during extraction. Outline the potential causes and how to address them.
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Consider both equipment and sample handling practices.

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