This paper examines the bio-impedance of the human body, and considers the impact of alcohol intake on said bio-impedance. We examine the feasibility of alcohol intake detection via the bio-impedance modulation created by alcohol intake. We successfully capture the pulsation effect appearing in the artery from bio-impedance variation. It is demonstrated that the bio-impedance method has great potential in detecting alcohol intake.

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A reagent combination of (NH4)2S2O8, a catalytic amount of AgNO3, in general, or Cu(NO3)2 in particular, and moist montmorillonite K10 clay in hexane regenerates the parent carbonyl compounds in high yields under relatively mild conditions.

This paper proposes an advanced technique to detect alcohol intake using the bio-impedance of the human body. We demonstrate how well the technique proposed here detects alcohol intake after suppressing the impact of subject variability and masking the impact of smoking. Key advances are taking account of body weight as well as spectral intensity ratio extracted from the data of each subject. We demonstrate the successful separation of the alcohol intake state from all other states for all subjects.

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