![Photo by Kelly Sikkema on Unsplash Photo of hand sanitiser being applied](/sites/default/files/styles/last_word_wide/public/articles/Hand-Sanitiser.jpg?itok=esbpsp5B)
The most important parameter to consider in compounding hand sanitiser is the alcohol content. It has also been determined that hand sanitiser with alcohol concentration below 60% (v/v) is not effective and could leave the user at higher risk of infection. This application note describes the use of FT-IR spectroscopy to determine ethanol and isopropanol in hand sanitiser.