If so, how will you be able to do this, given that alcohol concentrations in the human body change over time? (intox.com)
Before each test, participants were given a dose of alcohol that was calculated based on their body weight to bring them to a specific breath alcohol concentration. (sciencedaily.com)
The advantage is that a column still can run continuously and reach much higher alcohol concentrations than a series of pot stills. (treehugger.com)