Page 14 - Suite Teaching Timeline

DAY 3 DAY 4

Prepare the lab for thin layer chromatography Instruct students to prepare and run their
by setting out the development chambers (glass second TLC plate in the same manner as
jars), TLC plates, the actual receipts, and solvent. the first.

Prepare the board for students to record the While the second TLC plate is running,
information obtained from their analysis of the encourage students to begin copying the first
ink on the receipts. run data from the board. Students may also
begin answering the post-lab questions.
Instruct students to follow the lab procedure
for thin layer chromatography of Ink. During
this lab, the first of two TLC plates will be ran.

While students are watching the first TLC plate
run, discuss how chromatography works and
what is happening in the laboratory exercise.

14 THE MYSTERY OF LYLE AND LOUISE