Fig. 6

Chromatograms of the degradation profiles of GABA after exposure to (a) 1 N HCl, (b) photodegradation, (c) thermal degradation at 65 °C for 2 h, (d) 1 N NaOH, and (e) 30% H2O2, and (f) distilled water at 65 °C for 48 h respectively.

Chromatograms of the degradation profiles of GABA after exposure to (a) 1 N HCl, (b) photodegradation, (c) thermal degradation at 65 °C for 2 h, (d) 1 N NaOH, and (e) 30% H2O2, and (f) distilled water at 65 °C for 48 h respectively.