Volatile Drug Screening & Confirmation
Volatile drug screening and confirmation (BAC). The analysis of ethanol (alcohol) in forensic laboratories is important when analyzing DUI cases. Screening for ethanol is typically done by a breathalyzer and further confirmation is done in a forensic lab with a blood sample. The most widely used method to accurately measure blood alcohol content (BAC) for impairment is using headspace sampling and dual column separation by gas chromatography with flame ionization detection.