(Received 29 May 2002; accepted 19 October 2002)
Published Online: March
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The most common means of identification of gamma-hydroxybutyrate (NaGHB) involves using Fourier transform infrared spectroscopy (FTIR) or gas chromatography-mass spectrometry (GC-MS) of a suitable derivative. However, these methods may be complicated by possible shifts in chemical equilibrium between gamma-hydroxybutyric acid (GHB), GHB salts and the precursor lactone, gamma-butyrolactone (GBL). This paper addresses the technique of proton and carbon nuclear magnetic resonance spectroscopy (1H and 13C NMR) for the direct and accurate identification of GHB and GBL. The application of 1H NMR for GHB quantitation is also discussed.
Stock #: JFS2002186