After refluxing the turmeric and ethanol, the solution was diluted and run through the ultraviolet spectrometer. The concentration of the solution was found to be 0.0113M curcumin. This information was then used to calculate the amount of curcumin in the powdered turmeric by mass.
The turmeric being used in the lab was confirmed to be 5% curcumin by mass.
-Alexandra Griffith
5/23/19
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