Podcast
Questions and Answers
What ionization method is suitable for many non-polar compounds?
What ionization method is suitable for many non-polar compounds?
- Electrospray ionization (ESI)
- Protonation
- Atmospheric pressure photoionization (APPI) (correct)
- Photoionization
Which ionization method produces radical ions and protonated/deprotonated species?
Which ionization method produces radical ions and protonated/deprotonated species?
- Electrospray ionization (ESI)
- Protonation
- Deprotonation
- Photoionization (correct)
What does the spacing between isotopologues determine in mass spectrometry?
What does the spacing between isotopologues determine in mass spectrometry?
- Molecular weight
- Charge state (correct)
- Resolving power
- Neutral molecule mass
Which parameter tells us about the charge state in mass spectrometry?
Which parameter tells us about the charge state in mass spectrometry?
In electrospray ionization (ESI), what is measured on the mass spectrometer?
In electrospray ionization (ESI), what is measured on the mass spectrometer?
What should the resolving power have to be in order to resolve isotopologues in mass spectrometry?
What should the resolving power have to be in order to resolve isotopologues in mass spectrometry?
Which course should students search for if they are looking for past papers from the year 2021?
Which course should students search for if they are looking for past papers from the year 2021?
Which topic was included in the older course but is not part of CH3F2 from 2019-2020 onwards?
Which topic was included in the older course but is not part of CH3F2 from 2019-2020 onwards?
In which book can students find information on Mass Spectrometry?
In which book can students find information on Mass Spectrometry?
Which author did not write a book on Mass Spectrometry?
Which author did not write a book on Mass Spectrometry?
Where can students find past papers for the year 2020-2021?
Where can students find past papers for the year 2020-2021?
What is the correct formula for the neutral form of naphthalene?
What is the correct formula for the neutral form of naphthalene?
In positive-ion mode for naphthalene by APPI, what is the correct representation for the singly-charged species?
In positive-ion mode for naphthalene by APPI, what is the correct representation for the singly-charged species?
What is the charge on an electron?
What is the charge on an electron?
What is wrong with the calculation that was performed for the neutral form of C10H8?
What is wrong with the calculation that was performed for the neutral form of C10H8?
Which unit should be used for reporting masses instead of 'amu'?
Which unit should be used for reporting masses instead of 'amu'?
What number of significant figures should have been used in the calculation?
What number of significant figures should have been used in the calculation?
Why is MALDI ionization well-suited for polymer analysis?
Why is MALDI ionization well-suited for polymer analysis?
In MALDI-TOF, what is the role of the TOF mass analyzer?
In MALDI-TOF, what is the role of the TOF mass analyzer?
How is the n value calculated in the given equations?
How is the n value calculated in the given equations?
What experimental advantages does TOF offer in MALDI-TOF analysis?
What experimental advantages does TOF offer in MALDI-TOF analysis?
How does the combination of MALDI and TOF overcome data analysis complexities in polymer analysis?
How does the combination of MALDI and TOF overcome data analysis complexities in polymer analysis?
What is the purpose of choosing an organic matrix in MALDI ionization technique?
What is the purpose of choosing an organic matrix in MALDI ionization technique?
In MALDI, what is the typical ratio of matrix to analyte in the solution prepared for deposition?
In MALDI, what is the typical ratio of matrix to analyte in the solution prepared for deposition?
What is the role of the UV laser in MALDI ionization?
What is the role of the UV laser in MALDI ionization?
Which ionization mode occurs when the analyte is protonated in MALDI?
Which ionization mode occurs when the analyte is protonated in MALDI?
What is a common observation in APPI mechanisms according to the text?
What is a common observation in APPI mechanisms according to the text?
What nomenclature was proposed by Roepstorff and Fohlman regarding sequence ions in mass spectra of peptides?
What nomenclature was proposed by Roepstorff and Fohlman regarding sequence ions in mass spectra of peptides?
