Analysis of the results of this technique may include plotting the nominal and defect forms of a quantity named for Kendrick. In this technique, cyclohexene and its derivatives characteristically undergo the retro-Diels–Alder reaction. The output of this technique may display skewing due to changes in the analyte’s concentration over the scanning time. In this technique, compounds containing carbonyl groups may undergo the (*) McLafferty rearrangement. The strongest signal in this technique, whose intensity is set to 100, is called the base peak. This technique often obtains M+1 signals due to carbon-13. In this technique, the analyte is ionized and then deflected by a magnetic field. For 10 points, name this analytical technique that separates molecular fragments by their ratio of a namesake (10[1])quantity to charge. ■END■ (10[1])