Prev Next

Preparation and Tutorial Video


  • Assemble student supplies.
  • Prepare a piece of chromatography paper from the crime scene using Pen #4. Draw a line in pencil across the narrow width of the chromatography paper about 1 inch (2.5 cm) from the bottom of the strip. Make a second line approximately 2 inches (5cm) from the bottom. Using pen #4, make a dot of ink in the middle of the lower pencil line (at the 1 inch mark). Label the strip with “CS” at the top of the paper. Make one of these for each group.

For further instruction, watch the video tutorial below and read the Instructor Notes in the next topic. The Instructor Notes can also be found within the kit’s Instructor’s Guide.


Video Tutorial