I need some help assessing the spectra of maleic anhydride how do I determine the integration, multiplicity, chemical shift for each structure/ fragment part of the maleic anhydride

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.