Forensics: Chromatography
Yesterday, students turned into forensic investigators to solve a classroom mystery! To determine who wrote a mysterious "evidence note," the students used paper chromatography to analyze the ink of several different black markers. While the inks all looked identical to the naked eye, chromatography allowed the students to separate the hidden pigments. They watched as water traveled up the paper, revealing that each black marker was actually made of a unique blend of blues and reds. By comparing the colorful "fingerprints" of the suspect markers to the evidence note, students successfully cracked the case. *I didn't get a good picture of the chromatography results from the day of the lab. I attempted to recreate the results, but mine do not look as brilliant as theirs did!