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J Forensic Sci. 2001 Sep;46(5):1164-7.

Detection of gamma-butyrolactone (GBL) as a natural component in wine.

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  • 1Vermont Forensic Laboratory, Waterbury 05676, USA.


The compound gamma-butyrolactone (GBL) was found in extracts from samples of unadulterated wines. This finding indicates that GBL is a naturally occurring component in some wines and may be present in similar products. The concentration detected was approximately 5 microg/mL and was easily observed using a simple extraction technique followed by GC/MS analysis. These results illustrate the need to carefully examine an allegedly adulterated sample's matrix before determining a sample was laced with GBL.

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