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Bonsoir, en faisant ce qcm sur la spectrométrie de masse, je n’ai pas réussit a faire l’item C, comment sait-on que l’on peut avoir maximum trois carbones en n’ayant pas de pic à M+1 visible ? de plus au niveau du massif de pic a environ 200, comment sait-on que le pic de l’ion moléculaire est celui à 202 et pas 200 ? 

Merci ! 

IMG_1571.thumb.jpg.949bbecb0c01cea07c958038a3f0fb1d.jpg

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