Chromatography - Postlab Questions

Postlab Questions



6. Three overhead markers were analyzed using the same TLC system in this experiment. The result is shown below. Mark each of the following statements as TRUE or FALSE. Explain why the false statements are false.



    _____ The blue pen contains at least 2 different components.

    _____ The blue pen contains only 2 components.

    _____ The red pen definitely contains Red 40.

    _____ The red pen may contain Red 40.

    _____ Green 3 is not present in any of the pens.

    _____ The purple pen has one dye in common with the red pen, and one with the blue pen.

    _____ The purplish dye is more polar than either Green 3 or Blue 1

    _____ We would expect to find FD & C Dyes in the pens.




This completes the experiment.


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