Kuntzleman, Thomas S., and Erik C. Jacobson. “Teaching Beer’s Law and Absorption Spectrophotometry with a Smart Phone: A Substantially Simplified Protocol.” Journal of Chemical Education, January 29, 2016. doi:10.1021/acs.jchemed.5b00844.
Abstract: A very simple protocol for teaching Beer’s Law and absorption spectrophotometry using a smart phone is described. Materials commonly found in high school chemistry laboratories or even around the house may be used. Data collection and analysis is quick and easy. Despite the simple nature of the experiment, excellent results can be achieved.