An interactive tutorial to determine the amount of dyes present in a powdered beverage in order to examine the allegation that the manufacturer is exceeding the allowable amount of the artificial food dyes in the drinks it produces.he drink may contain more than one dye, and so the dyes must first be separated by column chromatography and then identified by colorimetric analysis. This is a qualitative analysis of the dyes.Once the dyes have been identified we can determine their concentration in the prepared drink using Beer's Law, another colorimetric technique. This is a quantitative analysis of the dyes.

Concepts

chromatography

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Additional Tags

chromatographic column, qualitative analysis, quantitative analysis, virtual lab, chem collective, chemcollective, virtual chemistry lab

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)

• This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information