The Reactivity of Gamma-hydroxybutyric acid (GHB) and Gamma-butyrolactone (GBL) in Alcoholic Solutions

    Volume 49, Issue 6 (November 2004)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 1 November 2004

    Page Count: 10


    Hennessy, S A
    Limerick Institute of Technology, Limerick,

    McDermott, S D
    Forensic Science Laboratory Garda H.Q, Dublin 8,

    Moane, S M
    Limerick Institute of Technology, Limerick,

    (Received 12 October 2003; accepted 12 June 2004)

    Abstract

    In this work the stability of GBL (gamma-butyrolactone) and GHB (gamma-hydroxybutyric acid) in alcoholic media was studied. Under acidic conditions the GBL will react with ethanol or methanol to give the corresponding ethyl and methyl esters of GHB. It can be seen that ester formation is dependent on the type of alcohol, the alcohol content of the solution, and the pH of the solution. Under the same conditions it was shown that GHB does not give rise directly to the corresponding ester when merely in the presence of an alcohol; however the ester will be formed if the conditions are present for conversion of GHB to GBL followed by subsequent reaction with alcohol. In alcoholic beverage samples spiked with GBL the expected conversion to GHB occurred, and the formation of the ethyl ester of GHB was also seen in some samples. Wine samples were analyzed for the presence of the ethyl ester of GHB, and the effect of adding GHB/GBL to hot beverages was studied.


    Paper ID: JFS2003340

    DOI: 10.1520/JFS2003340

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    Title The Reactivity of Gamma-hydroxybutyric acid (GHB) and Gamma-butyrolactone (GBL) in Alcoholic Solutions
    Symposium , 0000-00-00
    Committee E30