Chapter 5 Multiple Choice Questions

Tandem mass spectrometry

Quiz Content

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. Ions generated by soft ionization techniques, such as electrospray ionization, often require additional activation to dissociate because:

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. Which of the following statements most accurately describes the data plotted in a Wahrhaftig diagram:

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. The Elab energy of an ion with +2 charge state accelerated by a collision voltage of 20 V is:

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. The centre of mass energy Ecom of an ion of mass 1,500 Da and Elab energy 50 eV undergoing a single collision with an atom of Ar (39.96 Da) is:

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. Electron capture dissociation (ECD) is often said to yield complementary information to collision induced dissociation (CID) in MS/MS analysis because:

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. For a tandem (triple) quadrupole mass spectrometer operating in precursor ion scanning mode, the scanning arrangement of quadrupoles Q1 and Q3 is:

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. What is the name of the approach to tandem mass analysis which enables successive fragmentation of product ions?

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. Why is DDA analysis particularly useful when using hyphenated technique such as GC-MS or LC-MS?

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. What does the term SRM mean?

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. Name one of the benefits of DIA analysis compared to DDA in the LC-MS/MS analysis of a complex mixture.

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