Figure 4. Interlocking plastic-block spectrophotometer used in the experiment “Building a spectrophotometer and using it to measure an absorption spectrum”

From

Experiences Implementing Hands-On Wet-Lab Experiments Designed for Supervised At-Home Use During the Pandemic

Charles Hicks

World Journal of Chemical Education. 2022, 10(1), 38-45 doi:10.12691/wjce-10-1-5