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Mass Spectrometry and Resolution Quiz

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Questions and Answers

What is the purpose of mixing the analyte solution with a matrix component before ionization?

To protect the analyte molecules from the laser energy (correct)

To evaporate the liquid

To directly ionize the analyte molecules

To absorb the laser energy

Which component is primarily ionized by the laser beam in the process described?

Analyte molecules

Matrix component (correct)

Mass spectrometer

Liquid solution

What is the role of the matrix component in transferring energy and charge to the analyte molecules during ionization?

To ionize the analyte directly

To transfer energy and charge to the analyte (correct)

To protect the analyte from laser energy

To fragment the analyte molecules

Which type of mass spectrometer is typically used to analyze charged analytes in this process?

Time-of-flight analyzer Signup and view all the answers

In which ionization mode does Electron Impact (EI) result in the loss of a proton in negative mode?

Negative mode loss of proton Signup and view all the answers

What types of compounds are suitable for Electrospray Ionisation (ESI)?

Non-polar, moderately polar; volatile and thermally stable Signup and view all the answers

Which type of compound is good for Matrix-Assisted Laser Desorption/Ionization (MALDI)?

Non-polar basic in gas phase to accept ionic compounds Signup and view all the answers

What is the nature of the ionizing mechanism in Electrospray Ionisation (ESI) for negative mode?

Loss of proton Signup and view all the answers

Which ions are typically observed in Matrix-Assisted Laser Desorption/Ionization (MALDI)?

$M^+$ ions Signup and view all the answers

Mass Spectrometry and Resolution Quiz

Choose a study mode

Podcast

Questions and Answers

What is the purpose of mixing the analyte solution with a matrix component before ionization?

Which component is primarily ionized by the laser beam in the process described?

What is the role of the matrix component in transferring energy and charge to the analyte molecules during ionization?

Which type of mass spectrometer is typically used to analyze charged analytes in this process?

In which ionization mode does Electron Impact (EI) result in the loss of a proton in negative mode?

What types of compounds are suitable for Electrospray Ionisation (ESI)?

Which type of compound is good for Matrix-Assisted Laser Desorption/Ionization (MALDI)?

What is the nature of the ionizing mechanism in Electrospray Ionisation (ESI) for negative mode?

Which ions are typically observed in Matrix-Assisted Laser Desorption/Ionization (MALDI)?

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