Time of flight mass spectrometer

Last updated: 07/02/2020
OCR-A A-Level Chemistry Analytical techniques Time of flight mass spectrometer
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  1. What symbol is used to show relative atomic mass?

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  2. What is the equation used to find relative atomic mass?

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  3. What symbol is used to show relative molecular mass?

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  4. What is the equation used to find the relative molecular mass?

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  5. What is mass spectrometry used for?

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  6. What can mass spectrometry be used to measure?

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  7. What is the equation used to find the relative isotopic mass?

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  8. On a mass spectrometer graph, how is the x-axis labelled?

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  9. On a mass spectrometer graph, how is the y-axis labelled?

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  10. What type of solvent is the sample dissolved in?

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  11. Describe the ionisation step within a mass spectrometer.

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  12. Describe the acceleration step within a mass spectrometer.

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  13. Describe the ion drift step within a mass spectrometer.

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  14. Describe the detection step within a mass spectrometer.

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  15. Describe the data analysis step within a mass spectrometer.

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  16. Name the first three stages of the mass spectrometer.

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  17. Name the last three stages of the mass spectrometer.

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  18. Within a mass spectrometer, what is the use of the vacuum?

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  19. What does a vacuum stop from colliding with air?

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  20. What step within a mass spectrometer prevents ions from the sample coming into contact with air?

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  21. What step within a mass spectrometer transports the dissolved sample through a hollow needle?

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  22. What step within a mass spectrometer involves positive ions moving towards the negatively charged plate?

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  23. What step within a mass spectrometer involves positive ions passing through a negative plate and through a flight tube?

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  24. What step within a mass spectrometer involves positive ions reaching the detector and being recorded?

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  25. What step within a mass spectrometer presents a mass spectrum?

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