Question

When running this technique by hand, one can wash with triethylamine to “deactivate” materials used in this technique to reduce that material’s acidity and ability to decompose compounds. Rapid depressurization or exothermic solvent addition (-5[1])in this technique can lead to visually apparent “cracking,” forming regions (15[1])that are prone to leakage. It’s not distillation, but samples can be dry loaded by adsorbing them onto a powder in the (*) “flash” (10[1])form of this technique, (10[2])which uses a glass adapter connected to a nitrogen line. Hexanes (-5[2])are used to “pack” the silica (10[1])in a cartridge before (10[2])loading samples (-5[1])in this technique. Polar solvents (-5[1])are used in the reverse-phase (10[1])form of this technique. For 10 points, name this technique in which a mobile phase (10[1])elutes (10[1])and separates compounds down a stationary phase. (10[2])■END■ (10[3]0[1])

ANSWER: column chromatography [accept flash chromatography; accept affinity chromatography or liquid chromatography or HPLC; reject “thin-layer chromatography” or “gas chromatography”]
<JZ, Chemistry&gt;>
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Buzzes

PlayerTeamOpponentBuzz PositionValue
Ahmad ElrakhawiRITSyracuse+Rochester33-5
Matt SchiavonePurdue ANotre Dame B4415
Shardul ParthasarathyIllinois BIllinois A6710
Sam DowdAuxiliary Lofthouse Cookie UniversityI will play anything with a buzzer in front of me7110
Richard NiuCornell RCornell MATLAB7110
Gowthamm MandalaPurdue BNotre Dame A82-5
Robert CondronChicago AVanderbilt82-5
Neal JoshiWUSTL XYZSIUE8810
Aditya SivakumarBerkeley CBerkeley B9210
Braden BoothMissouri AWUSTL H2O9210
Raymond ChenTorontoOttawa A94-5
Ian ChowMcDouble West-CarletonOttawa B99-5
Shahar SchwartzBerkeley AStanford A10410
Michael DuWaterlooOttawa C11910
Ezra SantosChicago BIndiana12010
Aiden FeinVanderbiltChicago A12710
Stephen HeritageNotre Dame APurdue B12710
David GayowskiOttawa BMcDouble West-Carleton1280
James WangOttawa AToronto12810
Darryl WangSyracuse+RochesterRIT12810
Gabe ForrestSquidward Community CollegeMissouri B12810