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Candy Chromatography
9
Analysis
Conclusion
Error Analysis
The results of our experimentation yielded separation into the same component colors
- Time dye is exposed to solvent
- Too high or low solvent level in basin
- varying concentration of dye on chromatography paper
What have we learned?
- Mixtures that seem the uniform to the naked eye may not be uniform at the molecular level
- The candy coatings on M&Ms are more concentrated in dye than those on Skittles (potential health risk)
Going Further...
- How might different solvents affect the separation of the dyes?
- Solvents at different temperatures?
- What about vertical chromatography?
The separated dyes did not have the same retention factor
- The M&M candies had higher retention factors than the Skittles, meaning the pigment colors in their coating are more concentrated
Graphs
What is Chromatography?
Candy Chromatography
By: Zac Weilminster & Edima Essien, Period 3
Method used to determine what cannot be seen in mixtures like inks and dyes -- the components of the substance
2 Types:
Procedure and Data Collection
Vertical
Use of capillary action to separate dye
Horizontal
Use of wick to draw up water to separate dye
Our Experiment
OBJECTIVE: To determine if the colorbands from the corresponding candy colors of each brand would match, having used the same dyes for similar pigments.
HYPOTHESIS: Each candy in their respective brand would have the same colorbands & retention factors from chromatography.
Chromatography Vs. Candy Chromatography
To extrapolate dye from candies you have to use a concentrated solution.