MEASUREMENT OF ETHANOL IN A
FORENSIC WHOLE BLOOD SAMPLE
(12 Pages of Text + Exhibits)
Measurement of Ethanol by gas chromatography in a
forensic whole blood sample obtained from DUI suspects has long been the gold
standard. Unlike breath analysis for alcohol, whole blood alcohol analysis by
gas chromatography is performed using an internal standard method. Use of an
internal standard obviates the need to measure injected volume precisely since
the important factor is the ratio of alcohol to internal standard.
This Report illustrates the routine quantitative
analysis for blood alcohol by gas chromatography.