Abstract
A simple spectrophotometric procedure for the quantitative determination of FDandC food dyes in powdered drink mixes appropriate for high school or general science classes is presented. This method describes the determination of the total quantity of food dye, the quantity of dye per serving, and the percent by mass of each dye in the sample. Directions for the creation of food dye calibration curves is also presented. Lab time required is two–three hours.
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