Bonus

A mass gate and collision cell separate two apparatuses for measuring this quantity. For 10 points each:
[10m] Name this quantity that acts as a proxy for the velocity of particles that are given the same kinetic energy and ejected onto a secondary emission multiplier from a MALDI ionizer.
ANSWER: time of flight [or TOF; prompt on time; prompt on mass-to-charge ratio by asking “what other quantity is being measured to determine the mass-to-charge ratio?”; reject “mass”]
[10e] The time of flight of particles is measured in some variants of this technique, which analyzes molecules by determining their mass-to-charge ratio.
ANSWER: mass spectrometry [or MS]
[10h] The resolution of time-of-flight mass spectrometers can be improved with this method, in which an analyte flies unperturbed for a short time prior to being accelerated into the detector.
ANSWER: delayed extraction
<Chemistry>
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TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2313.04100%30%0%