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Identify the fragment giving rise to the peak at m/z 43.
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- What does cross peak X tell you?What is the mass spectrometry of this compound ?Mass spectrometry is often used to both identify and quantify compounds. What is different between mass spectra with changing concentrations of a compound? How would you design a method (i.e. what would you need) to both identify and quantify a compound using mass spectrometry?