CHCA, HPA, and ATT crystals are common supports for instances of this technique whose analytes are highly susceptible to damage. Analytes are heated in a vacuum in a version of this technique that relies on blackbody infrared radiative dissociation. Performing this technique on aromatic analytes can result in the formation of an unstable tropylium (“tro-PILL-ee-um”) ion. Samples for this technique can be prepared via desorption from a matrix made of an aromatic acid such as sinapinic acid. (10[1])Analytes undergo soft ionization by either electrospray ionization or MALDI (“MALL-dee”) in (10[1])the first step (10[1])of this technique. The kinetic energy of analytes in this technique is measured in its “time of flight” variant. For 10 points, name this technique that measures an analyte’s mass-to-charge ratio. (10[1])■END■ (10[1])