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2009 ADA DAT chemistry question and possible error??

Discussion in 'DAT Discussions' started by busybody554, Aug 8, 2011.

  1. busybody554

    5+ Year Member

    Aug 8, 2011
    Likes Received:
    Can anyone tell me the right answer to this problem....

    What techniques can be used to separate non-volatile substances?

    Thin-layer Chromatography
    Gas-liquid Chromatography
    Steam Distillation

    Also, is there an error in the biology section? This question ask what is the major intracellular buffer and the answer choices are: TRIS, Acetate, Phosphate, Bicarbonate, and Calcium Carbonate. I choose Phosphate and got it wrong. There is a similar question in the 2011 DAT Destroyer (#312) and the correct answer is phosphate and that's why I marked that answer in the 2009 ADA test but it marked it as wrong. I don't get it.
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