Food Dye Chromatography Postlab Questions
NAME _______________________________________ DATE ______________

FOOD DYE CHROMATOGRAPHY POSTLAB


1. Complete this table that summarizes the samples you analyzed and what FD & C Dyes were present in each sample.


G3 Y6 Y5 B1 R40 R3 B2
Wilton Violet






Wilton Christ. Red






Wilton Yellow






Wilton Leaf Green






Wilton Orange






Wilton Brown






Wilton Pink






Wilton Blue






Blue Food Coloring






Green Food Coloring






Yellow Food Coloring






Orange Koolaid






Cherry Koolaid






Grape Koolaid







2. Suggest a method by which the dye sample spotted on the TLC may have been collected and then state what dye(s) were present in the sample.