Master the techniques of paper chromatography with this interactive kit.

Using paper chromatography, students will separate the inks of several water soluble pens, calculate the relative rate of flow Rf for each colour dye on the chromatogram, and identify a type of pen based upon the quantitative measurements obtained.

For additional analysis, they can also extract the ink from a note left at the crime scene and compare its chromatogram to the known pens.

Materials for eight setups are included as well as a teacher’s guide and student copymasters.