Advanced PlacementCollege / Chemistry

Separating Food Dyes Using Chromatography

Students use paper and column chromatography to separate colored food dyes in a common grape-flavored drink mix.

This lab is an introduction to molecule-molecule interactions. The chemical composition of food dyes will be correlated to their polarity and thus, to their ability to bind to solid matrices and liquid media used in chromatography.


Student Files

05_ACI_Separating_Food_Dyes_S.docx 430.57 KB
05_ACI_Separating_Food_Dyes_S.pdf 589.19 KB

Teacher Files

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Standards Correlations

IB Topics AP Topics
4.3 SPQ-3.B; SPQ-3.C; SPQ-5.A

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Colorimeter and Turbidity

Wireless Colorimeter & Turbidity Sensor

This sensor can function as a turbidimeter or colorimeter and is capable of measuring absorbance and transmittance at six different wavelengths.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

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Source: Lab #05

Advanced Chemistry through Inquiry

Separating Food Dyes Using Chromatography