Introduction to Mass Spectrometry
5 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens when molecules in gas state are bombarded with high energy electrons?

  • They gain an electron and form a radical cation
  • They break down into smaller molecules
  • They lose an electron and form a molecular ion (M+) (correct)
  • They remain unchanged
  • What does mass spectrometry provide information about?

  • Physical state of the molecule
  • Isotopic composition of the molecule
  • Chemical reactions of the molecule
  • Exact molecular weight and molecular formula (correct)
  • What does the intensity of each signal in mass spectrometry represent?

  • Molecular weight of the cations
  • Relative abundance of the radicals
  • Molecular weight of the radicals
  • Relative abundance of the cations (correct)
  • What is a molecular ion (M+)?

    <p>A radical cation with a positive charge and one unpaired electron, representing the mass of the original molecule</p> Signup and view all the answers

    What is separated by magnetic deflection in mass spectrometry?

    <p>Cations based on their (m/z) ratio</p> Signup and view all the answers

    Study Notes

    Mass Spectrometry

    • When molecules in a gas state are bombarded with high-energy electrons, they break into charged particles called ions.
    • Mass spectrometry provides information about the mass-to-charge ratio of ions, which helps identify the structure of molecules.

    Signal Intensity

    • The intensity of each signal in mass spectrometry represents the abundance of ions with a specific mass-to-charge ratio.

    Molecular Ion

    • A molecular ion (M+) is a molecule that has lost or gained one or more electrons to form an ion with a single charge.

    Ion Separation

    • In mass spectrometry, ions are separated by magnetic deflection according to their mass-to-charge ratio.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    This quiz covers the basic principles of mass spectrometry, focusing on the detection of molecular weight and the process of ionization and fragmentation of molecules. It is designed to test understanding of how mass spectrometry provides information about molecular formula and structural elucidation of drugs.

    More Like This

    Atomic Spectroscopy Methods Quiz
    0 questions
    Atomic Spectroscopy for Elemental Analysis
    10 questions
    Techniques in Analytical Chemistry
    14 questions
    Use Quizgecko on...
    Browser
    Browser