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3 cards from this section. Quick, good the night before a test.
What is the first step in mass spectrometry?
Think about how we convert a molecule into ions.
What does the molecular ion peak represent?
Consider what happens to the molecule during ionization.
What does the molecular ion peak (M⁺) represent in a mass spectrum?
Think about what doesn’t change in the molecule during ionization.
True or False: The base peak represents the molecular ion.
Recall which peak is the highest in the spectrum.
You have a compound with a mass spectrum showing an M⁺ peak at 58 m/z and a base peak at 29 m/z. Identify possible functional groups present in the compound.
Look closely at common fragment patterns when analyzing the m/z ratios.
Explain how you would estimate the number of carbon atoms in a compound using the ratio of the M⁺ and M+1 peaks.
Think about how the presence of 13C isotopes influences the M+1 peak's intensity.
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