Practice Monitoring And Analysis (1.1) - Analysis Methods – Gas Chromatography (Mass Spectrometry)

Practice: Monitoring and Analysis

Lesson 1.1Analysis Methods – Gas Chromatography (Mass Spectrometry)

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8 questions

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2 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the purpose of ionization in mass spectrometry?
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Think about how we detect substances.
Question 2.
What does a mass analyzer do in a mass spectrometer?
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Focus on the role of separation.
3Question 3.
What does the mass analyzer do in mass spectrometry?
- Separates ions
- Ionizes the sample
- Calculates mass
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Focus on the separation function.
4Question 4.
True or False: Fragmentation happens before ionization.
- True
- False
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Think about the order of steps.
Question 5.
You have a complex mixture containing multiple organic compounds. Explain how you would set up and analyze this mixture using GC-MS.
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Think about the specific steps in GC and MS.
Question 6.
Upon receiving a mass spectrum, you notice that one peak does not correspond to any known compound in the library. Outline what your next steps would be.
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Consider the options for identifying unknowns.

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