Research Article

Food Safety Risk Assessment of γ-Butyrolactone Transformation into Dangerous γ-Hydroxybutyric Acid in Beverages by Quantitative 13C-NMR Technique

Figure 3

The chemical structure of GBL (a) and GHB (b). The 13C-NMR spectrum of GBL spiked into 0.2% aqueous solution of formic acid (c) and beverages without GBL (d).
(a)
(b)
(c)
(d)