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Published:
Journal of Analytical Toxicology,
ISSN 0146-4760,
Volume 25, Number 7, October, pp. 631-636
TECHNICAL NOTE: A Comprehensive Screen for Volatile Organic
Compounds in Biological Fluids
Mary-Ellen E. Sharp
Toxicology Services, RCMPolice Forensic Laboratory Services - Regina, Box 6500,
Regina, Saskatchewan, Canada S4P 3J7
A headspace gas chromatographic (GC) screen for common volatile
organic compounds in biological fluids is reported. Common GC phases, DB-1™
and DB-WAX™, with split injection provide separation and identification
of more than 40 compounds in a single 20-min run. In addition, this method easily
accommodates quantitation. The screen detects commonly encountered volatile
compounds at levels below 4 mg%. A control mixture, providing qualitative and
semiquantitative information, is described. For comparison, elution of the volatiles
on a specialty phase, DB-624™, is reported. This method is an expansion
and modification of a screen that had been used for more than 20 years. During
its first year of use, the expanded screen has proven to be advantageous in
routine forensic casework.
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