Recent content by CML

  1. C

    TLC plate in regards to polarity

    Thanks for your help, but I figured the question out. Turns out that xanthophyll was NOT what traveled the furthest, and it was infact catoene.
  2. C

    TLC plate in regards to polarity

    I will do my best to explain the procedure in as little detail as possible. Pigments (lycopene, xanthophyll and beta caroetene) were extracted from tomato paste via a multistep liquid-liquid extraction (including a sep funnel) and a microscale chromatography. The microscale chromatography...
  3. C

    TLC plate in regards to polarity

    I did two spots, one was crude tomato paste and another was lycopene extracted from tomato paste. The TLC looked something like: X L C | | Crude Extract...
  4. C

    TLC plate in regards to polarity

    I used a "normal" phase alumina TLC plate with 20% (v/v) dichloromethane/hexanes. I found the substance that traveled the furthest to be the most polar one (though the substance is not very polar, xanthohyll). Why would this be? I was under the impression that since the plate is polar and a...
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