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Laboratory analyzers used to determine the alcohol (usually ethanol) concentration in body fluids (e.g., serum, urine). The concentration of ethyl alcohol in whole blood is commonly expressed as percent by weight or volume (%w/v) or as grams per deciliter (g/dl). Most dedicated laboratory alcohol analyzers are based on gas chromatography or enzymatic oxidation and photometric measurement techniques. These devices are frequently used as supporting evidence of alcohol intoxication.
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