Mass Spectrometry

What are the steps of operation in the mass spectrometer?

• Accelerate, Deflect,Ionize, Detect
• Deflect,Ionize, Accelerate, Detect
• Ionize, Accelerate, Deflect, Detect
• Detect, Accelerate, Deflect, Ionize

What do the peaks on the mass spectrum represent?

• anions
• different isotopes
• atoms with differing numbers of electrons
• numbers of electrons

What do the heights of the peaks represent in the mass spectrum?

• number of isotopes
• relative abundance of each isotope
• average atomic mass
• charge:mass ratio

How many isotopes are shown in this mass spectrum?

• 1
• 84
• 86
• 4

How many isotopes of this element are shown in the mass spectrum?

• 98
• 7
• 100
• 95.9 g/mol

What kind of particles are used in mass spectrometry?

• Anions
• Cations

What is an analytical technique?

• A procedure that uses machines.

• A procedure that allows you to investigate a known compound

• A procedure that allows you to investigate an unknown substance and discover its identity.

• A procedure that allows you to discover new elements.

What ratio does the mass spectrometer detect?

• mass of main radical

• mass of molecular ion

• charge to mass ratio

• mass to charge ratio

In Mass spectrometry, the ions get deflected based on their (a)  

Which of the following is NOT a step in mass spectrometry?

• Deflection

• Detection

• Adsorption

• Ionization