Q.1
What is the typical energy of the electrons used to ionize analytes by Electron Ionization (EI)?
  • 50 eV
  • 70 eV
  • 1 eV
  • 1000 eV
Q.2
Which of the following cannot be used as a MALDI matrix compound?
  • α-Cyano-4-hydroxycinnamic acid
  • SA
  • 3-Hydroxypicolinic acid
  • 2,3-Dihydroxybenzoic acid
Q.3
Which of the following classifies Chemical Ionization most accurately
  • A hard ionization technique
  • A soft ionization technique
  • neither hard or soft ionization
  • A desorption ionization technique
Q.4
Which of the following main component of mass spectroscopy deal with resolving the ions into their characteristics mass components according to their mass-to-charge ratio?
  • Ion Source
  • Analyzer
  • Detector System
  • Recorder
Q.5
Which mass analyzer is most frequently used with MALDI?
  • Magnetic sector
  • Quadrupole
  • Ion trap
  • TOF
Q.6
Who discovered the mass spectrometer?
  • Francis Aston
  • J. J Thomson
  • Ernest O. Lawrence
  • Walter Kaufmann
Q.7
Highest m/z peak in mass spectrum is called as
  • Base peak
  • Fragment peak
  • Molecular ion peak
  • Parent peak
Q.8
Which of the following ionization technique uses a short laser pulse to achieve ionization?
  • ESI
  • Chemical Ionization
  • EI
  • MALDI
Q.9
Sublimation occurs in which of the following ionization methods?
  • ESI
  • FAB
  • Chemical Ionization
  • MALDI
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